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DEC PDP-11/23 (40-in)

(last updated: 10-Feb-2017)


Operational Status

Configuration

The current configuration is in its original 'as acquired' condition. I haven't changed any of the modules/cards or their order in the backplane.

Major Events

Still To Do


Description

11/23 box cleanup

04-Mar-2006

Hmm...backplane label reads: "11/03L". Was this box originally an 11/03? Even though the front panel badge reads "11/23"? Or, did the 23 just happen to use the 11/03 backplane?

I removed the box from the black cabinet cover. I pulled all of the cards from the cage and vacuumed them, the cage, the power supply, and the black cover. I also removed the front panel/bezel from the box, and removed the switch assembly.

I wiped down the box and the front panel/bezel, which is pretty scratched up. I cleaned the switch assembly and remounted it in the panel/bezel.

I reassembled the card cage and photographed everything.

Card cage
---------
1- M8186 : 11/23 CPU        | (empty)
2- M8059-FF : 64KW RAM      | (empty)
3- M8067-KF : 256KB RAM ->
4- M8013 : RL01 controller ->
5- M8014 : RL01 controller ->
6- M8043 : 4-SLU            | (empty)
7- (empty (M9400-YE))       | (empty)
8- (empty)                  | (empty)
9- (empty)                  | (empty)

11/03 box cleanup

15-Mar-2006

First, just a quick inventory of the 11/03 box:

1- M9401       | (empty)
2- (empty)     | M8028
3- (empty)     |
4- M8012-YA    ->

Cleanup (cont.)

22-Mar-2006

More cleaning of the rack.

I removed the card cage, and the power supply AC cord from the ties on the rack and set the power supply / card cage assembly asside. I removed the power controller and lower bracket from the bottom rear of the rack.

In the bottom of the rack, just loose on the bottom tray was some kind of cable guard or something. It mounts in the standard 19" rack, looks like. I don't know what this is for. There are no extra screws to hold it in place and it occurs to me that it might not even belong to this rack.

* There is a missing mounting screw on the left rear slide rail of the lower RL drive. I'll need to find a replacement.

Everything was vacuumed and wiped clean, except the side panel which are just set aside for now. Some of the lower front and rear brackets were removed from the rack for cleaning, then re-installed.

11/03 box power supply checkout

26-Mar-2006

Without a lot of time tonight, I decided to dive right in and get the power supply capacitor reforming without any prior cleanup.

There is only a single large capacitor, 19,000uF 40V. So this process should be very straight forward. Without having to remove the capacitor (wasn't easy, but I did get the (-) terminal screw removed in such tight quarters), I disconnected the wires to the negative terminal and attached it to my bench supply.

- 5v (8:12p-8:15p), the voltage came right up, and the current was only 68uA, so I decided to continue immediately up to 10v.

- 10v (8:15p-8:47p), after voltage stable, current was 250uA. Wow! Only 30 minutes later the current was just 3uA! I'm going to the next level!

- 20v (8:47p-8:50p), after voltage stable, current was 160uA and falling rapidly. I'm going to 30v.

- 30v (8:50p-8:51p), after voltage stable, current falling rapidly from 450uA. It dropped to 170uA in just a minute more.

- 40v (8:51p-), after voltage stable, current rapidly dropping from 700uA. Obviously, this capacitor has not problems, and doesn't need to be reformed, but I'll leave this setup overnight just to be sure.

27-Mar-2006

With the cap cooked overnight, I read a final current of 50uA, and turned off the power. That's all I had time for today.

11/03 box cleanup

28-Mar-2006

model: 11/03-SE (modified 11/03-SC) serial: AG20566 backplane: ?? mfg date: 1979-1982

I reconnected the wires to the capacitor and am now ready for cleanup.

Here is the card cage configuration (photos):

1- M9041 : Bus extender (slave) | (empty) 2- (empty) | M8028 : DLV11-F : Serial Async w/20ma 3- (empty) | (empty) 4- M8012-YA : Diag/BootROM/bus terminator ->

The M9041 has two 40-pin ribbon cables that attach to the M9400-YE board in the 11/23 cabinet, tying the two backplanes together. (Unfortunately, I broke the module handle off of the M9400-YE during pickup. I'll have to try someway to glue it back on.) (photo)

So, that's the configuration. The M8028 has a 40-pin rainbow ribbon cable terminating in a 24-pin Mate-N-Lock type connector. I'm not sure yet what this module does, but it's probably a single line async board.

I removed all of the boards, and removed the black under-tray, which I cleaned, and noticed that the backplane/box has been changed from 11/03-SC to 11/03-SE. I see half a dozen wire wrapped connections on the backplane. I'm guessing that these connections constitute the change. Let's see if I can list them... There is a single green-colored wire: - slot 1, row A, pin A6 <--> slot 1, row C, pin A7 <--> an external pin on the top of the backplane There are several blue-colored wires: - slot 1, row B, pin B15 <--> slot 1, row D, pin B15 - slot 1, row B, pin B16 <--> slot 1, row D, pin B16 - slot 4, row B, pin B7 <--> slot 4, row D, pin B7 - slot 4, row B, pin B15 <--> slot 4, row D, pin B15 - slot 4, row B, pin B16 <--> slot 4, row D, pin B16

I removed the front switch panel bezel (and almost lost a couple of washers!) and cleaned just a bit more here. There is an empty 16-pin DIP socket labeled REMOTE and I wonder if this connects to the other CPU box, or does/did it connect to the POWER and BOOT switches in the top cover of the rack? I reinstalled the front switch assembly bezel.

11/03 box power supply checkout (cont.)

28-Mar-2006

I'm ready to apply AC to the power supply, now that I have all of the boards removed from the backplane. Here we go!

Okay! I powered the supply with AC, the two fans spin up right away! The DC ON/OFF front panel switch toggles the DC ON LED on and off. Looks like things are working as they should! Wahoo!

11/03 box reassembly

28-Mar-2006

I reattached the black bottom-tray under the card cage, and reinstalled the boards. This system is now ready for functional testing.

11/23 box power supply checkout

10-Apr-2006

I disassembled the unit all over again, so that I could get the power supply removed from the box. I didn't bother removing the card cage from the chassis, but everything else I disconnected. I removed the 10-pin cable that leads to the front bezel (this will be a bear to get back on!), and I removed the bit 9-pin power connector. This let me remove the power supply from the box, after removing two screws that attach the power supply housing to the card cage/backplane.

I removed the seven screws that attach the power supply PCB to the housing, clipped the 'wire-tie' bands around the two large capacitors, and then removed the two large capacitors from the PCB.

The two large capacitors are both 2000uF 200V. These are on the input side of the power supply.

The capacitors on the output side are unfortunately soldered directly to the PCB. There are two 11,000uF 6.3V capacitors and a single 3700uF 25V capacitor on the output side. I can see that these capacitors are in direct contact with the output terminals. As Bill Gillman suggested, I should be able to feed voltage back in from the output terminals to give these capacitors a charge.

There is a single 2200uF 40V capacitor in the center of the PCB.

Side note: When I reformed the capacitors on the 4.5' racks 11/23 (nee 11-03L), I took the large 200V caps up to 50V, the limit of my bench supply. Since that time, Bill has suggested that these could be brought up to 120V by putting them in series with a 15W light bulb and plugging them into the AC. But without rectification, this is probably not a good idea, so I plan to just take them to 50V and take my chances.

Starting with these two 2000uF 200V capacitors, which I connected in series, and using a 10mA current limit:

- 5v (8:50p-9:06p), voltage came right up, no delay, with the current settling at 25uA, but bouncing around. I'll let this cook for a while. Well, 15 minutes later (9:05p), the current was down to 8uA. We're going to the next level.

- 10v (9:06p-9:25p), voltage rose rapidly, and current dropped to 67uA right away. Twenty minutes later (9:21p), the current was down to 19uA. Going to the next level.

- 25v (9:25p-10:04p), an immediate rise to 25V, with the current dropping readily to 300uA. Forty minutes later (10:03p), the current was 25uA. I'm going to go to 50V and let it cook overnight.

- 50v (10:04p-9:19p April 12), immediate voltage rise, and current settled at 300uA.

* Noted during the disassembly for power supply checkout, one of the jumper clips on the CPU board has broken the clip on one side. This is the clip second closest to the B row of fingers. I removed and reinstalled it off-center so that the broken clip side is held in tension against the jumper post. Whether or not this will be a problem in the future will be seen. But something to be aware of.

12-Apr-2006

With the two big capacitors still cooking, I saw a final current of 0uA! We're done! At least as far as I can take them. I turned of the bench supply and discharged the two capacitors.

Now, on to the embedded capacitors...

I connected the bench supply to the 5V output of the power supply (photos), and started at 0V and slowly raised the voltage, with the current limit at 10mA.

- 2.5v (9:28p-11:21p), voltage slowly came up with the current settling at 985uA. After nearly 2 hours (11:20p), the current was still 980uA. So I suspect a lot of the current is going to other components that are just burning it up as heat. I'm not sure, but I'm going to go to 5V, and hope it works.

- 5v (11:21p-12:20a April 14), the voltage rose fine right up to 5V, but the current never dropped under 10mA. I guess the juice is just flowing through other components, but the capacitor should be at 5V, so that should be good for it. I'll let it cook for a while. Being curious, I was interested in what the actual current would be, so I increased the current limit, and found that the current is stable at 13.3mA. After one hour, I figured that that's the best I can do, and powered down.

14-Apr-2006

Today, I connected the 12V output of the power supply to the bench supply (photo), again starting at 0V and slowly raising the voltage, with the current limit at 10mA.

- 5v (3:25p-11:25p), the voltage only came to 3.15V, with the current pegged at 8.49mA. So, there is more power being consumed by other components. I raised the current limit to 25mA, and finally saw 5V. I'll let this stew for a bit. After 8 hours (11:23pm), the current was still at 25.8mA. So, no change. I believe that I've done all I can do on this 'output' type of rig.

- 12v I tried to take the voltage higher, but of course the current is limited and it won't budge unless I raise the current limit above 25mA. I'm not going to push it any more. I removed power and let the charge bleed off.

11/23 box operational testing

18-Apr-2006

In preparation for operation testing, I removed the DB-9 style output panel from the M8043 DLV11-J and connected a DB-25 style one that came with another DLV11-J that I bought from ebay, and which is now in my spares. I just want to minimize the differences that I have to figure out. I'll learn more about the DB-9 pinouts later, but I have run across references that indicate that DEC's 9-pin serial connector is not wired the same way that the standard IBM AT 9-pin connector is wired. I connected a VT100 to the fourth DB-25 connector and power it up.

With the backplane now connected to the power supply, I reconnect the AC line, and switched the system on.

I see a power OK LED on the front panel, but nothing on the terminal. I tried the other serial port, but still nothing. Switching the HALT switch to run mode, and RESTARTing, sees a momentary RUN LED, but then it goes out and the system halts again. Something isn't right.

I did measure the voltages again, with the backplane connected, and I see 5.27V and 12.39V on the power supply outputs, now that there is some kind of load.

Anyway, realizing the Dworkin had said that this 11/23 and the 11/03 chassis used together, I remembered that the 11/03 system has the M8012-YA terminator/boot module in it's card cage. I removed it from that system and put it into this system.

I'm now getting a steady RUN indication, but I still can't get anything to appear on the VT100 terminal. I've tried both the top and bottom connector on the DLV11-J expansion port assembly, and neither is producing any output. Hmm...

I wonder if the M8043 DLV11-J isn't set up with the standard CSR and vector addresses. This might account for the lack of output. The 11/03 chassis has a M8028 DLV11-E that might be set up as the console. I'm going to pull the M8043 and see what its configuration is.

Well, it looks good. Port 2 is set up for something unusual, but everything else looks normal. Port 3 is indeed configured as the Console port, so it should be working.

After much fiddling around, I finally borrowed the port expansion assembly from the 4.5' rack's M8043 and hooked it up. I knew that it was working. Aha! That's it! I'm getting output on the VT100 (photo), and it shows that the system is indeed alive. There's something wrong with the other port expansion assembly that came with my ebay M8043. I'll have to check it out and see what, but later.

Anyway, the system is working!

I'm going to hook up the TU58 emulator and see if it will boot. It does! Port 0 is set up for 19.2K baud and that's what I started the TU58 emulator with. I keyed in the TU58 bootstrap code (from Will's RT11ARC.TXT file), and it booted right up! I did a series of DIRectories and I copied all of the files to the NL: device and it worked fine. So, the CPU and memory are functioning. Of course, I still should do a full memory test, but for now this is good enough.

After this testing, I wanted to set up the rack.

After installing the 11/03 in the rack, I placed this system on the top of the rack, and connected this system to the 11/03 using the M9040/M9041 modules and ribbon cables. After getting the cables turned the right way around, and figuring out how to set the switched on the front panel of the 11/03 (see 11/03 notes), I was successful at booting this system, and having the 11/03 expansion bus too!

I then connected the RL Drive 0 to the M8013 RLV11 controller in this system, and was successfully able to boot from the disk using the Longmont #001 disk cartridge.

One thing that was interesting is that the START? prompt that appears after a RESTART is not configured to boot to the RL drive. It fails that. I wonder if the Diagnostic/BootROM board is configured for another device as the default. I'll have to check this sometime. But, by entering DL0 at the START? prompt, it boots up just fine.

Operational testing

18-Apr-2006

With the 11/23 CPU box functioning, I decided to hook both backplanes together. I removed the M8012-YA that I had temporarily installed in the 11/23 and returned it to this 11/03 backplane, in the bottom position.

Also, I mounted this system in the 4' rack.

Then with the 11/23 on top of the rack, I cabled the two chassis together using the M9040 (11/23) and the M9041 (11/03) and interconnecting cables. At first I had the cables installed reversed, but fixed that. (Details of this are in the 4' Rack notes file.)

After some fiddling with the front panel switches, I figured out how to set everything up. By leaving the 11/03's DC ON/OFF switch in the ON position, and the HALT/RUN switch in the RUN position, this enabled the 11/23 to control everything as one normally would do, from its front panel.

I don't know if this 11/03's LTC ON/OFF switch has any effect with the systems connected. I suspect not, since the 11/23 backplane has the CPU and the LTC signal is handled on the CPU board. Flipping the LTC switch one way or the other seemed to have no apparent effect on the operation of the collective system.

Cleanup (cont.)

18-Apr-2006

I finished cleaning the rack by wiping the brown side panels with Windox.

Reassembly

18-Apr-2006

After testing the 11/23 CPU system, I'm ready to reassemble this rack. It is too bad that there isn't enough room to mount the 11/23 box in the rack itself, but that'll have to be worked out sometime later. I'm planning to put it all back just as Dworkin had it, then make changes from there.

So, this is the configuration, from top to bottom, that I'll use:

- 11/23 (sitting on top of the rack) - 11/03 (as just an expansion bus) - RL01 Unit 0 - RL01 Unit 1 - RX02 Floppy unit

Behind the RX02, on the rear of the rack, I'll have the 871C power controller.

I started by putting the black tray for the 11/03 back into the uppermost rack position. I then inserted the 11/03 power supply and card cage assembly. With that in place, I installed the boards, back into the 11/03 card cage, in the same positions as I received them. I'm not sure that this is correct, but we'll soon see.

Then I simply placed the 11/23 on top of the rack. I installed the bus expansion board cables, and tied the 11/03 and 11/23 together.

Operational Testing

18-Apr-2006

I connected a VT100 to the Console port and set up my Aero laptop as a TU58 emulator on Port 0 of the M8043.

I powered up the 11/03 first. I didn't see any lights on the front panel at first, but I did hear the fans. I then flipped the DC ON/OFF switch to ON and then I got the power indicator LED to light.

I powered the 11/23 next, and saw nothing on the front panel. I flipped the HALT/RUN switch to RUN and the RESTART switch, but still nothing. I noticed that the diagnostic/ROM board in the 11/03 had all red lights so something was wrong.

Thinking that it was something wrong with the bus expansion connection, I double-checked the interconnecting cables. Sure enough, I had the red stripe on the left coming out of the 11/03, but on the right going into the the 11/23. I pulled the board from the 11/23 and reversed the cables so that the stripe was on the left. Luckily, Dworkin or someone before him had marked the cables with a J1 and a J2 so I knew which was which. With this resolved, I tried again.

It worked! As long as I have the front panel switches set up correctly, that is.

Turns out that I have to have the HALT/RUN switch in the RUN position *on both systems* or I drop into ODT. I guess that makes sense since each backplane has that switch connected to the BHALT (I think?) line. Also, I have to leave the 11/03 DC ON/OFF in the ON position, so that its backplane gets power, and then of course, I have to have the 11/23's HALT/RUN switch in the RUN position. To reset the CPU, I use the RESTART switch on the 11/23.

I don't know if the LTC ON/OFF switch on the 11/03 matters, since there isn't a CPU in that backplane. I'm guessing that it doesn't matter. The 11/23 has a LTC already.

I guess it goes like this: As long as I leave the 11/03 switches alone (DC ON/OFF in ON position, and HALT/RUN in RUN position), I really don't need to worry with them any more. Then I can just use the front panel of the 11/23 as I'm accustomed to doing.

I'm going to hook up an RL drive to see if I can get that to work. Sure enough, it does! At first I thought I had the RL ribbon cable from the M8013 to the connector bracket in backwards, but I didn't and put it back. The diagnostic board shows a red light *until* you first talk to the drive. So, I booted from the Longmont #001 disk cartridge and took a photo.

It worked! As long as I have the front panel switches set up correctly, that is. Turns out that I have to have the HALT/RUN switch in the RUN position *on both systems* or I drop into ODT. I guess that makes sense since each backplane has that switch connected to the BHALT(I think?) line. Also, I have to leave the 11/03 DC ON/OFF in the ON position, so that its backplane gets power, and then of course, I have to have the 11/23's HALT/RUN switch in the RUN position. To reset the CPU, I use the RESTART switch on the 11/23.

I guess it goes like this: As long as I leave the 11/03 switches alone (DC ON/OFF in ON position, and HALT/RUN in RUN position), I really don't need to worry with them any more. Then I can just use the front panel of the 11/23 as I'm accustomed to doing.

I'm going to hook up an RL drive to see if I can get that to work. Sure enough, it does! At first I thought I had the RL ribbon cable from the M8013 to the connector bracket in backwards, but I didn't and put it back. The diagnostic board shows a red light *until* you first talk to the drive. So, I booted from the Longmont #001 disk cartridge and took a photo.

With this testing completed, I reattached the front bezel to the 11/03 chassis. (photo)

Operational checkout (cont.)

19-Apr-2006

I connected the second RL drive, Drive 1, to the first drive, moving the terminator to Drive 1. It works just fine! I was able to boot from Drive 0, and made an image copy of Longmont #017 'RL01K-DC' clone-type disk cartridge on Drive 1.

Reassembly

27-Apr-2006

I disconnected the temporary configuration and removed the 11/23 from the top of the rack.

Looking at the two cables that come from the front panel switches under the rack's top, I discover that the cable the terminates in a 3-pin (two are used) molex mate-n-lock connector is connected to the power switch and controls the power controller, just like in my Darien 11/23+ configuration. This is good! Now I have a single power switch at the front panel!

The other cable terminates in three bare wires: black, red, sheild. Using my VOM I learned that the black and red wires connect when the BOOT switch is flipped up, and disconnected when flipped down. So this is some kind of RESTART switch for the old-sytle 11/03, I bet. How these wires connect to it are anyone's guess, but I'm sure I could learn from the online documents. In the current configuration, though, this switch is moot. The 11/23 that sits on top of the cabinet has it's own RESTART switch integrated into its front panel, so this one is no longer need. If, however, I ever wanted to remove the 11/23 and run with just the 11/03, then I'd have to figure it out. The only thing that comes to mind, off hand, is the 'Remote' DIP socket on the 11/03's front panel PCB. This might be where these wires connect. More to learn at a later time, since I plan to just reassemble this system, as I received it.

There are a number of apparently spare 'snap-on' nuts attached to the rack here and there. I'm going to remove them, and keep them in reserve for other future uses. I found a grand total of 15 unused mounting nuts! They were on all sides. Well, now I have quite a pile of spares to be used for mounting the RX02 that will eventually be fitted to this rack, with gobs left over. I'm putting these spares in my box with the other random bits that came from the Darien system.

The missing mounting screw from the RL rail has been replaced with a spare from these bits of random things from the Darien system, so that is no longer a problem.

I mounted up the two RL01 drives and replaced the 11/23 box on top of the cabinet. I haven't reconnected all of the power, and interconnecting ribbons but this is good for now.

The brown side panels were replaced (I didn't reconnect the grounding wire) and I took a couple of photos.

I'm going to turn my attention now to the RX02 unit that came from Longmont loose in the bottom of this rack. If all goes well, I'd like to mount it in the rack on rails, and if I can find a RXV12 controller, I'll hook it up.

Serial connector pinouts

19-Nov-2006

While sounding out the DB9 SLU connectors on the Data Translations LAB DATAX system, I went ahead and sounded out the cable connectors on the little x4 DB9 assembly box with this result:

IDC-10 - female +------------+ | 1 3 5 7 9 | | 2 4 6 8 10 | +------------+

DB9 - male ----------- ( 1 2 3 4 5 ) \ 6 7 8 9 / '-------'

IDC-10 DB-9 ------ ---- 1 ............ 1 UART clock (16x baud rate) 2 ............ 3 Signal ground 3 ............ 4 Transmit data + 4 ............ 5 Transmit data - (grounded for RS-423) 5 ............ 9 Signal ground 6 . key 7 ............ 8 Receive data - 8 ............ 7 Receive data + 9 ............ 6 Signal ground 10 ............ 2 +12V

So, an appropriate pigtail conversion cable for use with an RS-232C terminal would be:

DB-9 DB-25 ---- ----- chas ............. 1 8 .............. 2 Receive data 3 .............. 3 Transmit data 7 ..+ 9 ..| 2 .............. 7 Signal ground

General checkout

16-Jun-2008

It's been so long since I've actually powered this system, that I decided to give it a little juice and just generally check it out.

I'd forgotten that this system doesn't have the two RL01/RL02 interconnect cables, nor the terminator, so I couldn't do anything there, but I did power up the drives with the rest of the system, just to excercise the power supplies. As expected, both drives show a FAULT light since there is no connection to the controller.

After fiddling with the front panel switches on the little B?-11 box mounted in the rack, and the switches on the BN-11 box that just rests on top, I got the system to show a prompt. I have to have all three switches on the B?-11 box in the UP position. The POWER rocker switch controls the power controller. And, as far as I can tell, the BOOT rocker switch does nothing. On the BN-11 box, I just operate the switches as I'm used to. AUX switch UP (actually doesn't matter), RUN switch UP, and RESTART toggled UP as required.

Well, I fiddled a little bit with ODT, but didn't bother to connect my PC with the TU-58 emulator. I'll do that another day.

Full configuration inventory

14-Jul-2010

Time to really document the configuration, that is, detail the configuration settings of each board in the system. Also, after learning as much as I have about QBus system over these last few years, I surprised myself when I discovered that this machine has more than 256KB (128KW), even though the PDP-11/23 CPU is only able to support 256KB. I suspect that the extra 64KB module was placed in this system by mistake, maybe during the previous owners rescue and or checkout. Given this memory limit, and that fact that the single 256KB board provides that, I might just relocate the extra 64KB to my other 11/23 system which currently has just 192KB. This extra 64KB would provide it also with the maximum support memory.

Anyway, let's review what we have here:

KDF11-AA : M8186 (etch rev. C) : LSI-11/23 CPU w/MMU and FPU : s/n AB1420F689
	- Master clock, internal : W1 jumpered
	- Event line (line sclock) enabled : W4 removed
	- Power-Up Mode, bootstrap enabled : W5 jumpered, W6 removed
	- HALT trap to 10 : W7 jumpered
	- Power-up bootstrap to 173000 : W8 jumpered
	- Bootstrap address (used if W8 removed) : 177000 : W9-15 jumpered
	- (factory settings) : W16-18 jumpered

MSV11-LF : M8059-FF : 64KW (128KB) MOS RAM : s/n HK24001889 - 22-bit enabled : T-R jumpered - Starting address, 000000 : P,N,M,L (to K) and Z,Y,X,W,V (to U) removed - CSR Address, 1772100 : C,B,A (to E) removed - (factory settings for all other jumpers)

MSV11-PK : M8067-KF : 128KW (256KB) MOS RAM : s/n M02140158 - 22-bit enabled : 2-Y jumpered - Starting address, 00400000 : N-R jumpered, X,W,V,P,M,L,T (to U/R) removed - CSR Address, 17772100 : D,C,B,A (to E) removed - Grant continuity in CD row disabled : W1 and W2 removed

RLV11 (disk) : M8013 : RL01 disk controller (1 of 2) : s/n 88007 - Masked PROMS (factory setting) : W1,W3 jumpered; W2,W4 removed

RLV11 (bus) : M8014 : RL01 disk controller (2 of 2) : s/n 87252 - CSR Address, 174400 (default) : on:ASW-1,2,5 off:3,4,6-10 - Vector, 160 (default) : on:VSW-3,4,5 off:1,2,6,7

DLV11-J : M8043 : 4-Line SLU : s/n 14936 - CSR at 176500 (A5,A9=0; A6 installed; A7 removed; A8,A10-A12=1) - Vector at 300 (V5=0; V6,V7 installed) - Channel 3 as Standard Console (CSR=177560,Vector=60) (C1,C2=1) - Halt on Channel 3 BREAK (X=H) - Channel 0: 8 bits, 1 stop bit, odd parity disabled (E,S=0; D,P=1) 19200 baud (0=K) EIA RS232C selected (M0=3; N0=3) - Channel 1: 7 bits, 2 stop bitS, odd parity disabled (E,D=0; S,P=1) 2400 baud (1=Y) EIA RS232C selected (M1=3; N1=3) - Channel 2: 8 bits, 1 stop bit, odd parity disabled (E,S=0; D,P=1) 9600 baud (2=N) EIA RS232C selected (M2=3; N2=3) - Channel 3: 8 bits, 1 stop bit, odd parity disabled (E,S=0; D,P=1) 9600 baud (3=N) EIA RS232C selected (M3=3; N3=3)

REV11-E (BCV1B) : M9400-YE : 240-ohm Bus terminator/extender (18-bit) : s/n AB123164E9

* The CSR on the MSV11-PK may not be right, since it conflicts with the MSV11-LF. Have to check that.

In the 11/03 BA11-M backplane I have:

(BCV1B) : M9401 : Bus extender mirror image : s/n AB1220NI12

DLV11-F : M8028 (etch rev. D): SLU : s/n AB04402707 - CSR Address, 177500: A3-A5,A7 removed; A6,A8-A12 jumpered - Vector, 360 : V3,V8 removed; V4,V5,V6,V7 jumpered - Transmit 1200 baud : T0,T1,T2 removed, T3 jumpered - Receive 1200 baud : R0,R1,R2 removed, R3 jumpered - Break generation disabled : BG removed - Parity disabled : P removed - Odd parity : E removed - 8 data bits : 1,2 removed - Programmable baud rate disabled : PB removed - Common speed enabled : C,C1 jumpered - Split speed disabled : S,S1 removed - Halt on framing error disabled : H removed - Boot on framing error disabled : B removed, -B jumpered - 20ma receiver (mis-configured) : 1A,2A,3A,1P,2P removed - 20ma transmitter (mis-configured) : 4A,5A,3P,4P removed - Error flag enabled : EF removed - (factory settings) : M,M1 removed

BDV11 : M8012-YA : Boot, Termination, Diagnostics : s/n 3328287 - Memory Configuration "A" (W1,W4,W10,W11 open; W2,W3,W9,W12 closed) - 8316E PROM type selected (W6,W8,W13 open; W5,W7 closed) - CPU Test enabled (A1 on) - Memory Test enabled (A2 on) - DECnet Boot disabled (A3 off) - Console Test & Dialog enabled (A4 on) - No Default Device enabled (A5-A8,B1 off) - PROM sockets E48,E53 populated

* The CSR of the DLV11-F should be 176500, and Vector 300!


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