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iPump 6420 User’s Manual
www.wegener.com 800070-01 Rev B Chapter 2, Page 28
Connector
Designation
(Options shown
in red)
Type Pin # Signal Description
SERIAL M&C
9-pin D female jack
1 DCD (internally pulled to +5V)
2 RxD (data output)
3 TxD (data input)
4 DTR (not connected)
5 GND
6 DSR (internally pulled to +5V)
7 RTS (not connected)
8 CTS (internally pulled to +5V)
9 RI
(internally pulled to +5V, with weak
current limiting)
PIO INPUT
15-pin D male jack 1 PIO #1 In
2 PIO #2 In
3 PIO #3 In
4 PIO #4 In
5 PIO #5 In
6 PIO #6 In
7 PIO #7 In
8 Ground
9 PIO #1 Return
10 PIO #2 Return
11 PIO #3 Return
12 PIO #4 Return
13 PIO #5 Return
14 PIO #6 Return
15 PIO #7 Return
ALARM
15-pin D male jack 1 Ground
2 RxD (spare data output)
3 TxD (spare data input)
4 Ground
5 Ground
6 Cue Relay #1: Common contact
7 Alarm
(COM closes here on alarm or
when power is off)
8 OK
(COM closes here when OK)
9 Ground
10 Ground
11 Ground
12 Ground
13 Cue Relay #1: N.C. contact
14 Cue Relay #1: N.O. contact
15 COM