Jp11 Rs-232/Rs-485 Operation; Table: Serial Port Pinouts - GE D20 Installation And Operation Manual

GE Energy
Connections and Configuration
D20ME II Jumpering
JP11 A JP11 jumper is always installed in conjunction with a serial communications port
channel. The jumper's position depends on whether the channel has been mode
RS-232/RS-485
selected as either RS-232 or RS-485 (see SW2).
Operation
Note: In order for RS485 (RS422) to operate, the RTS ON/OFF setting must be
1
2
3
4
5
6
7
Table: Serial Pinouts for serial ports for both RS-232 and RS-485 configurations.
Port Pinouts
DB-9 Pin
1
2
3
4
5
6
7
8
9
General
Full
, continued
, continued
enabled and both DCD and CTS must be disabled in Config Pro specific to
the protocol being used for that serial port. RTS must be toggled ON for
RS485 transmissions and may be set continuously ON for RS422 data
transmissions.
Serial Comm Port
1-2
4-5
7-8
10-11
13-14
16-17
19-20
RS-232
CD N/C
RX RX-
TX TX-
N/C N/C
GND Com GND
N/C N/C
RTS TX+
CTS RX+
EARTH GND EARTH GND
Installation and Operations Guide
JP11 (pins) RS-232
2-3
5-6
8-9
11-12
14-15
17-18
20-21
RS-485
994-0078-2.00-7
D20/D200
JP11 (pins) RS-485(RS-422)
Enabled
49