Figure 4–2
VTC-20F cable and null modem adapter
P2
P3
Null Modem Adapter,
required for serial console
VTC-20F Cable
Table 4–2 COM1 and COM2 connector pin-outs (J4 connector)
COM1 / 2
COM2
DB–9 Pinout
Pin# RS–232
signal
Pin# RS–422/485
signal
DB–9 pin#
1
nc
11
DCD
1 / 11
6
nc
12
DSR
2 / 12
2
Rx+
13
RxD
3 / 13
7
14
RTS
4 / 14
Tx
–
3
15
TxD
5 / 15
Tx+
8
16
CTS
6 / 16
Rx
–
4
17
DTR
7 / 17
nc
9
18
RI
8 / 18
nc
5
19
GND
9 / 19
nc
20
nc
10 / 20
nc
Table 4–3 COM2 termination switch, Switch 2
Switch 2 – COM2 termination
COM Port
Interface
Switch 2 Settings
RS–422/RS–485
no termination
Position 3 Off *
Position 4 Off *
COM2
RS–422/RS–485
with termination
Position 3 On
Position 4 On
* Default. These switches terminate the network. If
the 5266 is at an end of an RS-422/485 network, set
these switches to On. For RS-232 on COM2 these
switches must remain Off.
47
Содержание 5266
Страница 18: ...Figure 2 1 5266 component diagram top 18 ...
Страница 19: ...Figure 2 2 5266 component diagram bottom 19 ...
Страница 20: ...Figure 2 3 5266 dimensions inches 20 ...
Страница 21: ...Figure 2 4 5266 dimensions mm 21 ...