Moog Tritech Seanet SCU v5, Руководство по эксплуатации продукта, Страница: 21 / 33

Data and Control Ports Seanet SCU v5
0581-SOM-00002, Issue: 05 21 © Tritech International Ltd.
When used in RS-232 mode, the pin out of this port is wired in the same way as a PC serial
“COM” port (i.e. using DTE signal directions), and compatible with any standard RS-232
peripherals and cabling.
Supports data transfer rates of up to 115200 baud in RS-232/RS-485 mode.
PORT B
4 5 1 2
8 6
3
7 9
SCU DE-9 male connector
Pin RS232 RS422 RS485
1 ‡ ‡ ‡
2 RX TX.A TX/RX.A
3 TX TX.B TX/RX.B
4 ‡ ‡ ‡
5 GROUND GROUND GROUND
6 ‡ ‡ ‡
7 ‡ RX.B ‡
8 ‡ RX.A ‡
9 ‡ ‡ ‡
‡ = connected for handshaking only.
• 150ohm termination resistor is fitted across pins 2 and 3, when in RS-485/RS-422 mode,
and pins 7 and 8 permanently.
• Pins 7 and 8 will have RS-422 signal levels (+/-5V) present on them when configured in
RS-232 or RS-485 mode.
• RTS and CTS handshaking protocol is not available on this port. PC Serial ports should
be configured to use no handshaking.
Port C & D Details
Signals are fully isolated and voltage transient protected with respect to the communications
power supply.
Supports data transfer rates of up to 115200 baud in RS-232/RS-485 mode.
PORT C/D
4 5 1 2
8 6
3
7 9
SCU DE-9 male connector
Pin RS232 RS485 ARCNET
1 ‡ ‡ ‡
2 RX RX/TX.A LAN A
3 TX RX/TX.B LAN B
4 ‡ ‡ ‡
5 GROUND GROUND GROUND
6 ‡ ‡ ‡
7 ‡ ‡ ‡
8 ‡ ‡ ‡
9 ‡ ‡ ‡
‡ = connected for handshaking only.
• 150ohm termination resistor is fitted across pins 1 and 2, when in RS-485 mode.
• RTS and CTS handshaking protocol not available on this port. PC Serial ports should be
configured to use no handshaking.