Pin Assignment; Rs-232 & Rs-485 & Power Supply Interface; Can Bus Interface - ICPDAS GW-7238D User Manual

2.2

Pin Assignment

2.2.1 RS-232 & RS-485 & Power supply Interface
The GW-7238D provides one RS-232 interface and one RS-485
interface with hardware flow control. The GND-signal of COM1 is shared
with pin-9, GND. The pin assignment is shown in table 2-1.
Table 2-1: COM Connector Pin Assignment
Pin No. Name
1 CTS1
2 RTS1
3 RXD1
4 TXD1
5 INIT*
6
7
8
9 GND
Figure 2-3: COM Connector on the GW-7238D

2.2.2 CAN bus Interface

In order to provide an easy CAN bus wiring, the GW-7238D supplies
one CAN port with two CAN bus connector interfaces. Each connecter
built on the GW-7238D looks like as figure 2-4 and table 2-2.
GW-7238D J1939 to MBTCP Server / MBRTU Slave Gateway User's Manual (Ver.1.0, Nov. 2011) --- 9
CTS pin of COM1 (RS-232)
RTS pin of COM1 (RS-232)
RXD pin of COM1 (RS-232)
TXD pin of COM1 (RS-232)
Initial pin for enable/disable
D2+ Data+ pin of COM2 (RS-485)
D2- Data- pin of COM2 (RS-485)
VS+
(+10V to +30V DC unregulated)
Description
AUTOEXEC.BAT
V+ of power supply
GND of power supply