Loma IQ2 Service Manual page 49

SERIAL LINK SELECTION
Link
RS232
RS422
20mA
LK1 TX
LK2 RX
LK1 TX
LK2 RX
JP2 Header
Connector
PIN FUNCTION
1 Rx loop +
2 Tx loop -
3 Rx loop -
4 Tx loop +
5 Rx _422+
6 Rx_422-
7 Tx_422+
8 Tx_422-
9 Gnd
10 Gnd
11 Cts_232
12 Rts_232
13 Tx_232
14 Rx_232
Figure 10 JP2 Header board and 16 way chassis connector wiring
Module 7026
Communications selection links
JP4 RXD
1-2
3-4
5-6
Figure 8 Communications selection details
20mA Link Detector Active
A
IN OUT
IN OUT
20mA Link Detector Passive
OUT
OUT
Figure 9 20mA Configuration setting details
Link Type
RS232 RS422
RX+
TX+
GND
GND
CTS
RTS
TX
RX
Configuration and Set up Information
JP1 TXD
1-2
3-4
5-6
B C
IN
IN
IN OUT
IN OUT
16 Way Chassis
20mA PIN
RX+ 14
TX- 11
RX- 3
TX+ 13
5
RX- 6
7
TX- 8
9
10
2
12
4
1
JP5 Power
1-2
3-4
5-6
D E
OUT IN
OUT IN
IN OUT
IN OUT
Connector
COLOUR
Orange
Grey
White
Brown
Violet
Black
Pink
Yellow
Green
Green
White
Yellow
Red
Blue
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