Wegener Communications 6420 user manual Serial M&C

				iPump 6420 User’s Manual
Connector		Type	Pin #	Signal Description
Designation
(Options shown
in red)
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
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