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Backplanes - detailed slot descriptions
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Backplanes - detailed slot descriptions

Notes: DD11 Unibus Backplane

Unibus Backplanes

TypeSlotsDescription
DD11-A4The end slots are Unibus in rows A and B, one of the middle sp;slots, row A is for the power connection. Rows C to F are SPC.
DD11-B4The end slots are Unibus in rows A and B, the middle slots, rows A and B are for DF11. Rows C to F are SPC. Power connection is via a harness and faston tabs.
DD11-CF4The end slots are Unibus in rows A and B, the middle slots, rows A and B are MUD (?). Rows C to F are SPC. Power connection is via a soldered harness for a BA11-F mounting box.
DD11-CK4The end slots are Unibus in rows A and B, the middle slots, rows A and B are MUD (?). Rows C to F are SPC. Power connection is via a soldered harness for a BA11-K mounting box.
DD11-DF9The end slots are Unibus in rows A and B, the middle slots, rows A and B are MUD (?). Rows C to F are SPC. Power connection is via a soldered harness for a BA11-F mounting box.
DD11-DK9The end slots are Unibus in rows A and B, the middle slots, rows A and B are MUD (?). Rows C to F are SPC. Power connection is via a soldered harness for a BA11-K mounting box.

Detailed Slot Descriptions

Backplanes viewed from the wiring side.

DD11-A
ABCDEF
4UNIBUS SPC
3PowerunusedSPC
2unavailableunusedSPC
1UNIBUS SPC

DD11-B
ABCDEF
4UNIBUS SPC
3DF11 SPC
2DF11 SPC
1UNIBUS SPC

DD11-C
ABCDEF
4UNIBUS SPC
3Modified UNIBUS SPC
2Modified UNIBUS SPC
1UNIBUS SPC

DD11-D
ABCDEF
9UNIBUS SPC
8Modified UNIBUS SPC
7Modified UNIBUS SPC
6Modified UNIBUS SPC
5Modified UNIBUS SPC
4Modified UNIBUS SPC
3Modified UNIBUS SPC
2Modified UNIBUS SPC
1UNIBUS SPC

UNIBUS Pin Designations
Row A Row B
1212
AINIT L+5VBG6 H+5V
BINTR LGNDBG5 HGND
CD00 LGNDBR5 LGND
DD02 LD01 LGNDBR4 L
ED04 LD03 LGNDBG4 H
FD06 LD05 LAC LO LDC LO L
HD08 LD07 LA01 LA00 L
JD10 LD09 LA03 LA02 L
KD12 LD11 LA05 LA04 L
LD14 LD13 LA07 LA06 L
MPA LD15 LA09 LA08 L
NGNDPB LA11 LA10 L
PGNDBBSY LA13 LA12 L
RGNDSACK LA15 LA14 L
SGNDNPR LA17 LA16 L
TGNDBR7 LGNDC1 L
UNPG HBR6 LSSYN LC0 L
VBG7 SOGNDMSYN LGND

aa

Modified UNIBUS Pin Designations
Row A Row B
1212
AINIT L+5VRESV+5V
BINTR LGNDRESVTP
CD00 LGNDBR5 LGND
DD02 LD01 L+5 BATBR4 L
ED04 LD03 LINT SSYNPAR DET
FD06 LD05 LAC LO LDC LO L
HD08 LD07 LA01 LA00 L
JD10 LD09 LA03 LA02 L
KD12 LD11 LA05 LA04 L
LD14 LD13 LA07 LA06 L
MPA LD15 LA09 LA08 L
NPAR P1PB LA11 LA10 L
PPAR P0BBSY LA13 LA12 L
R+15 BATSACK LA15 LA14 L
S-15 BATNPR LA17 LA16 L
TGNDBR7 LGNDC1 L
U+20 COREBR6 LSSYN LC0 L
V+20 CORE+20 COREMSYN L-5 CORE

Unibus / Modified unibus difference
Row A Row B
1UB1MUD2UB2MUD1UB1MUD2UB2MUD
AINIT L +5V BG6 HRESV+5V
BINTR L GND BG5 HRESVGNDTP
CD00 L GND BR5 L GND
DD02 L D01 L GND+5V BATBR4 L
ED04 L D03 L GNDINT SSYNBG4 HPAR DET
FD06 L D05 L AC LO L DC LO L
HD08 L D07 L A01 L A00 L
JD10 L D09 L A03 L A02 L
KD12 L D11 L A05 L A04 L
LD14 L D13 L A07 L A06 L
MPA L D15 L A09 L A08 L
NGNDPAR P1PB L A11 L A10 L
PGNDPAR P0BBSY L A13 L A12 L
RGND+15V BATSACK L A15 L A14 L
SGND-15V BATNPR L A17 L A16 L
TGND BR7 L GND C1 L
UNPG H+20 COREBR6 L SSYN L C0 L
VBG7 SO+20 COREGND+20 COREMSYN L GND-5V CORE

SPC Pin Designations
Row C Row D Row E Row F
12121212
ANPG IN+5VTP+5VGND+5VABG OUT+5V
BNPG OUT-15VTP-15VASSYN IN H-15VABG IN-15V
CPA LGNDA SEL 6GNDA12 LGNDSSYN LGND
DLTCD15 LA OUT LBR7 LA17 LA15 LBBSY LF01 N1
ETPD14 LA SEL 4BR6 LMSYN LA16 LF01 V2D02 L
FTPD13 LA SEL 0BR5 LA02 LC1 LD05 LD06 L
HD11 LD12 LA INBR4 LA01 LA00 LD07 LA INT ENBB
JA INT BD10 LA SEL 4A BR OUTSSYN LC0 LNPR LGND A
KTPD09 LA OUTBG7 SOA14 LA13 LD08 LA INT B
LA INT ENBBD08 LINIT LBG7 OUTA11 LTPD03 LF01 L2
MTPD07 LA INT ENBABG6 SOA INA OUT HINTR LF01 M2
NDC LOD04 LA INT ABG6 OUTA OUT LA08 LF01 N1D04 L
PHALT REQD05 LTPBG5 SOA10 LA07 LABR OUTF01 P2
RHALT GRTD01 LTPBG5 OUTA09 LA SEL 4F01 L2F01 N1
SPB LD00 LTPBG4 SOA SEL 6A SEL 0F01 M2F01 P2
TGNDD03 LGNDBG4 OUTGNDA SEL 2GNDSACK L
U+15/+8D02 LTPABG INA06 LA04 LA INT AABR OUT
VAC LOD06 LASSYN IN HABG OUTA05 LA03 LA INT ENBAF01 F01

11/40 Power Distribution Panel

Connector: AMP 9 pin MATE-N-LOC™
PinAWGColorFunctionSlot Pins
118violetDCLOBF2, CN1
218yellowACLOBF1
318blue-15VCB2, CC2, CD2, CE2
414blackGND
514blackGND
6 n/c
718brownLTCCD1
814grey+15VCU1
914red+5VAA2, BA2, CA2, DA2, EA2, FA2

DD11-DK Power Connections

P2 Connector: AMP 15 pin MATE-N-LOC™ (Also on DD11-CK)
PinAWGColorFunctionSlot Pins
114red+5VAA2, BA2, CA2, DA2, EA2, FA2
218grey+15VCU1
314orange+20V coreAU1, AV1, AV2
414red+5VAA2, BA2
5
6
7
814blackGND
914blackGND
10
11
1214red+5VBBD1
13
1418brown-5V coreBV2
15

P3 Connector: AMP 6 pin MATE-N-LOC™ (Also on DD11-CK)
PinAWGColorFunctionSlot Pins
114blackGND
218brownLTCCD1
318violetDCLOBF2, CN1
418yellowACLOBF1
5
6

P4 Connector: AMP 15 pin MATE-N-LOC™ (Not available on DD11-CK)
PinAWGColorFunctionSlot Pins
114red+5VAA2, BA2, CA2, DA2, EA2, FA2
2
314orange+20V coreAU1, AV1, AV2
414red+5VAA2, BA2, CA2, DA2, EA2, FA2
5
618white+15VBAR1
7
814blackGND
914blackGND
10
11
12
1318blue-15VCB2, CC2, CD2, CE2
14
1518green-15VBAS1

Original here

Power supply connectors

These connectors are all “MATE-N-LOK” connectors from TE Connectivity. This connector family consists of housings and pins sold separately in different form factors and pin sizes. Some parts can be obtained from conrad.nl; search for MATE-N-LOK.

I got the following to work with the connectors:

  • TE Connectivity 163304-2 Krimpcontact MATE-N-LOK, female pin, max 15A, 17 AWG Max, 20AWG Min, min dwarsdoortsnede 0.5mm2, max 1.0mm2

The corresponding pin seems to be this:

A male housing that is not fully compatible but which has at least proper spacing seems to be this:

© 2024 by Frits Jalvingh. All information in here can be freely used (MIT License)