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VIPER Technical Manual Connectors, LEDs and jumpers
© 2007 Eurotech Ltd Issue E 89
PL4 – COMS ports
Connector: Oupiin 3012-40GRB/SN, 40-way, 2.54mm (0.1”) x 2.54mm (0.1”) dual row
IDC boxed header
Mating connector: FCI 71600-040LF
Pin Signal name Pin Signal name
1 SCL (I
2
C) 2 SDA (I
2
C)
3 GND (I
2
C) 4 3.3V (I
2
C)
5 TX5+ (RS422)
(TX5+/RX5+ RS485)
6 TX5- (RS422)
(TX5-/RX5- RS485)
7 RX5+ (RS422) 8 RX5- (RS422)
9 GND 10 GND
11 TX3 12 RX3
13 RX2 14 RTS2
15 TX2 16 CTS2
17 GND 18 GND
19 GND 20 NC
21 DCD4 22 DSR4
23 RX4 24 RTS4
25 TX4 26 CTS4
27 DTR4 28 RI4
29 GND 30 NC
31 DCD1 32 DSR1
33 RX1 34 RTS1
35 TX1 36 CTS1
37 DTR1 38 RI1
39 GND 40 NC
As viewed from the connector pins
V
L
V
L
I
2
C
COM5
COM3
COM2
COM4
COM1