3Com 3C63400-3AC-C - PathBuilder S700 Switch Reference Manual page 51

Table 13 RS422/449 DCE Cable Pinouts (60-pin Make to RS-449 Female; Part # 3C63921)
Pin # on 60 Pin
Signal Name Conn
Frame GND 46
Circuit GND 15, 16, 30
RTS 1, 2
CTS 9, 10
DSR 7, 8
DCD 5, 6
DTR 3, 4
LL (not used) 29
SD+ 28
SD- 27
RD+ 11
RD- 12
SCTE+ 26
SCTE- 25
SCR+ 24
SCR- 23
SCT+ 13
SCT- 14
Shorting GR 1 48, 49
Step 4: Connect I/O Cabling and Wiring
Direction (For
Pin # on V.35 Conn QSIM)
1
19, 20, 37
7, 25 In
9, 27 Out
11, 29 Out
13, 31 Out
12, 30 In
10 In
4 In
22 In
6 Out
24 Out
17 In
35 In
8 Out
26 Out
5 Out
23 Out
37