Modem Loopback Connector Pin Assignments; Ethernet Loopback Connector Pin Assignments; Summary Of Loopback Connectors - DEC DECstation 5000 Model 100 Series Hardware Operator's Manual

Table C-6. Modem Loopback Connector Pin Assignments
From
Pin No.
P4-2
P4-4
P4-6
P4-12
P4-18
P4-18
P4-18
Table C-7. Ethernet Loopback Connector Pin Assignments
From
Pin No.
P6-3
P6-10
P6-13
Table C-8. Summary of Loopback Connectors
Function
Communications
loopback connector
ThickWire loopback
connector
ThinWire T-connector
ThinWire terminator
C–6 Connector Pin Assignments
To
Signal Pin No.
TX2 P4-3
RTS2 P4-5
DSR2 P4-20
SPDMI2 P4-23
LLPBK2 P4-8
LLPBK2 P4-22
LLPBK2 P4-25
To
Signal Pin No.
TRA+ P6-5
TRA– P6-12
PWR P6-6
Standard/
Unique
Standard
Standard
Standard
Standard
Signal
RX2
CTS2
DTR2
DSRS2
CI2
RI2
TMI2
Signal Description
REC+ Through capacitor
REC– Through capacitor
RET Through resistor and LED
Part Number
12-15336-13
12-22196-02
12-25869-01
12-26318-01
Option Number
H3200
N/A
H8223
H8225