TANDBERG 6000 MXP user manual Appendix 20 Cable Specifications, External Network Pinout

Appendices

Appendix 20: Cable Specifications

TANDBERG MXP and Classic Endpoints that support External Network

External Network Pinout

With respect to signals on the NET port:

•For balanced signals a “0”=low voltage is defined as terminal A positive with respect to terminal B.

•For unbalanced signals a “0”= low voltage is defined as terminal positive with respect to GND.

Pinout on 26-pin HD connector J5

		Standard				Call control (menu			Mnemonics
Pin					Signal		setting)
numb					dir.		Leased	Data
	V35	RS449	RS366	X21		RS366		trig.
							line
								Manual
1	GND	GND	GND	GND					Frame Ground (connected
									to GND)
2			DPR		Output	x			Digit present
3			ACR		Input	x			Abandon Call & Retry
4			CRQ		Output	x			Call Request
5			PND		Input	x			Present Next Digit
6			DLO		Input	x			Data Line Occupied
7			NB1		Output	x			Digit bit 1
8			NB2		Output	x			Digit bit 2
9			NB4		Output	x			Digit bit 3
10			NB8		Output	x			Digit bit 4
11	SD (A)	SD (A)		T (A)	Output	x	x	x	Send Data / Transmit
12	SD (B)	SD (B)		T (B)	Output	x	x	x	Send Data / Transmit
13	RD (A)	RD (A)		R(A)	Input	x	x	x	Receive Data
14	RD (B)	RD (B)		R(B)	Input	x	x	x	Receive Data
15	SCR	SCR(A)		S(A)	Input	x	x	x	Signal Clock Receive /
	(A)								Receive Timing
16	SCR	SCR(B)		S(B)	Input	x	x	x	Signal Clock Receive /
	(B)								Receive Timing
17	SCT	SCT(A)			Input	x	x	x	Signal Clock Transmit /
	(A)								Send Timing
18	SCT	SCT(B)			Input	x	x	x	Signal Clock Transmit /
	(B)								Send Timing
19	GND	GND							GND
20		TR (A)		C(A)	Output	x	x		Terminal Ready / Control
21		TR (B)		C(B)	Output	x	x		Terminal Ready / Control
22	RLSD	RR (A)		I (A)	Input	x	x		Received Line Signal
	(CD)								Detector / Carrier Detect /
									Receiver Ready /
									Indication
23	GND	RR (B)		I (B)	Input	x	x		Received Line Signal
	(RLSD)								Detector / Carrier Detect /
									Receiver Ready /
									Indication
24	RI	IC			Input	x			Ring Indicator / Incoming
									Call
25	LOS	LOS			Output	x	x		Loss Of Signal
26	DTR				Output	x	x		(Data) Terminal Ready

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