McCain FleX M73101S - Page 137

FleX Controller – User Manual 53
Version 1.0
b) Pin assignment of the SDLC (SP3S) port (DB-15 position connector).
SDLC Port, DB-15 pin out
PIN
SIGNAL
1
TxD+
2
GND
3
TxCLKO+
4
GND
5
RxD+
6
GND
7
RxCLK+
8
GND
9
TxD-
10
ENABLE/DISABLE
11
TxCLKO-
12
CHASSIS GND
13
RxD-
14
NC
15
RxCLK-
The unit has three RS-232 asynchronous serial communication ports with software selectable speed from
1.2Kbps to 115.2Kbps, these ports are available over DB-9 female connectors. SP4 is used primarily for
connecting a terminal computer or as a general purpose port, SP1 and SP2 are general purpose ports.
c) Pin assignment of the SP4 (DB-9 position connector).
SP4, DB-9 pin out
PIN
SIGNAL
1
NC
2
RxD
3
TxD
4
NC
5
GND
6
NC
7
NC
8
NC
9
NC