A–4
DEC WANrouter 90 Owner’s Manual
Table A-1 : Pin Descriptions for 50-Pin D-Connector (Cont.)
V35 RXD A
V35 RXD B
V35 TXD A
V35 TXDB
V35 RXCLK A
V35 RXCLK B
DTR
DSR A
DSR B
RTS
DCD A
DCD B
CTS A
CTS B
DCE GND
TEST TXD
TEST RTS
DTE GND
DTR A
DTR B
CLOCK A
CLOCK B
TEST TXCLK
DSRS
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
V35 RXD A
V35 RXD B
V35 TXD A
V35 TXD B
V35 Receiver signal
element timing (DCE)
A V35 Receiver signal
element timing (DCE) B
Data terminal ready
Data set ready A
Data set ready B
Request to send
Data channel
received line signal de-
tector A
Data channel
received line signal de-
tector B
Clear to send send A
Clear to send B
DCE ground
Test transmit data
Test RTS
DTE ground
Data terminal
ready A
Data terminal
ready B
Terminal Timing A
Terminal Timing B
Test transmit clock
Data signal rate
selector
CD
CC
earth
CA
CF
earth
CB
earth
earth
**
**
AB
**
CH
108/2
107
earth
105
109
earth
106
earth
earth
**
**
102
**
111
TR
DM
DM
RS
RR
RR
CS
CS
RC
SC
SR
DM
DM
RR
RR
CS
CS
RC
SC
TR
TR
TT
TT
SR
104
104
103
103
115
115
107
earth
105
109
earth
106
earth
earth
102
Signal Signal
Pin
Description
Name
EIA-232-D
V.24
RS-423 RS-422 V.35
X.21 BT
** These three pins are used for testing.
I
I
Ga
A.1.3 Console Port Connector
The console port connector on the DEC WANrouter 90 is a modified modular jack
(MMJ). The MMJ supports DEC 423 Data Leads Only connections.
Figure A–2 shows how the pins are numbered on an MMJ connector and Table A–2
lists the signals on the pins.
