Table 5–2 COM1 and COM2 connector pin-outs (J2 connector)
COM1 COM2
Pin# RS–232
signal
Pin# RS–232
signal
B1
B2
B3
B4
B5
B6
B7
B8
B9
DCD
DSR
RxD
RTS
TxD
CTS
DTR
RI
GND
B10
B11
B12
B13
B14
B15
B16
B17
B18
DCD
DSR
RxD
RTS
TxD
CTS
DTR
RI
GND
Table 5–3 J7 – COM2 connector pin-outs and pin-outs for 2060 RS–422/485 cable
J7 connector
DB–9
connector
Pin #
Signal
Pin #
Pin #
1 TXD+
1
2 TXD–
6
nc
2
nc
7
nc
3
nc
8
4 RXD+
4
5 RXD–
9
3 GND
5
Table 5–4 COM2 jumper: W2
W2 – COM2 jumper
COM
Port
Interface Jumper
Settings
RS–422/RS–485
no termination
No jumpers on W2
COM2
RS–422/RS–485
with termination
W2[1–3], W2[2–4]*
* Default. These jumpers terminate the network. If
the 2060 CPU Card is not at an end of the network,
leave these jumpers off . See Figure 5–2 for the pin
numbering on jumper blocks W2 and W3.
51