ADTRAN ISU 512 user manual Table D-C, RS-366 Dialing Port Pinouts

Appendix D. Pinouts

Table D-C

RS-366 Dialing Port Pinouts

P i n	N a m e	I n p u t / O u t p u t		D e s c r i p t i o n s
1	Shield	I / O	Shield for Cable
2	DPR	I	Digit	Present
3	ACR	O	Abandon Call and Retry
4	CRQ	I	Call Request
5	PND	O	Present Next Digit
6	PWI	O	Power Indication
7	SG	I / O	Signal Ground
1 3	DSC	O	Distant Station Connect
1 4	NB1	I	Digit LSB
1 5	NB2	I	Digit	bit	2
1 6	NB4	I	Digit	bit	3
1 7	NB8	I	Digit MSB
2 2	DLO	O	Data Line Occupied
	Signals for 2nd RS-366 Port on RS-366 Y Cable
8	BDPR	I	Digit	Present
9	BACR	O	Abandon Call
1 0	BCRQ	I	Call Request
1 1	BPNDD	O	Present Next Digit
1 2	NC	N / A	No Connection
1 8	BDSC	O	Distant		Station Carrier
1 9	BNB1	I	Digit LSB
2 0	BNB2	I	Digit Bit 2
2 1	BNB4	I	Digit Bit 3
2 3	NC	N / A	No Connection
2 4	BNB8	I	Digit MSB
2 5	BDL0	O	Data Line Occupied

I = Input, O = Output, N/A = Not Applicable

See Figure D-3.

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