Rs-232 Connections - GE Multilin D400 Instruction Manual

RS-232 connections

To connect RS-232
type devices to the
RS-232 adapter
RS-485 connections
58
The D400 accepts connections to RS-232 type devices through the RS-232 Adapter. The
RS-232 Adapter (GE Item No. 520-0207LF) is an RS-232 serial I/O adapter card that plugs
into any serial communication slot (slots 1 through 8) on the D400. It contains two
independently isolated RS-232 serial ports (Port 1 and Port 2) each with a DB-9 connector.
The required RS-232 cable is a serial null modem, DB-9F to DB-9M cable. The cables must
be shielded and DB-9S connector covers must provide EMC shielding (e.g. metallized
plastic or die-cast metal covers).
See "RS-232 adapter" on page 36 for configuration options.
Use the cable connection shown in Figure 31.
Figure 31: RS-232 cable connection
6
7
8
9
Table 13: RS-232 Port DB-9 Connector Signal Definitions
Pin DTE (default)
Numbers
Signal Acronym
1 DCD
2 RXD
3 TXD
4 DTR
5 Signal GND
6 DSR
7 RTS
8 CTS
9 Not connected
a
DCD output not supported in DCE mode.
The D400 accepts connections to RS-485 2-wire and 4-wire type devices through the RS-
485 Adapter. The RS-485 Adapter (GE Item No. 520-0208LF) plugs into any serial
communication slot (slots 1 through 8) on the D400. It contains two independently isolated
GE INFORMATION
CHAPTER 4: CONNECTING TO DEVICES AND NETWORKS
1 1
2 2
3 3
5 5
5 5
DCE
Signal Flow Signal Acronym
IN from DCE a
IN from DCE RXD
OUT to DCE TXD
OUT to DCE DTR
- Signal GND
IN from DCE DSR
OUT to DCE RTS
IN from DCE CTS
- Not connected
D400 SUBSTATION GATEWAY INSTRUCTION MANUAL
6
7
8
Relay
9
Signal Flow
a
OUT to DTE
IN from DTE
IN from DTE
-
OUT to DTE
IN from DTE
OUT to DTE
-