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Pin assignment of 7188E1:
Pin Name
Description
1
CTS1
CTS pin of COM1 (RS-232)
2
RTS1
RTS pin of COM1 (RS-232)
3
RXD1
RXD pin of COM1(RS-232)
4
TXD1
TXD pin of COM1(RS-232)
5
INIT*
Initial pin for enable/disable AUTOEXEC.BAT
6 N/C
7 N/C
8
VS+
V+ of power supply (+10 to +30VDC unregulated)
9
GND
GND of power supply
E1: 10BaseT connector
Note:
1. 7188E1 = 7188E2 remove COM2
2. 7188E1D = 7188E2D remove COM2
3. 7188E1/7188E1D does not support I/O Expansion Bus. So you cannot
install any X???? into 7188E1/7188E1D.
4. The GND-signal of COM1 is shared with pin-9, GND.
5. The wire connection of CA0910 to PC & 7188E series is given as follows:
6. Refer to Sec. 5.5 for application wiring.
GND
+Vs
TXD1
INIT*
GND
D2-
+Vs
D2+
RTS1
CTS1
RXD1
TO PC
CA0910
GND
TXD
RXD
7188E Series Hardware User’s Manual, 2004, v2.2, 7MH-016-22 ----- 56