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Appendix D. Pinouts
61202.086L1-1 ISU 512 User Manual 91
Table D-C
RS-366 Dialing Port Pinouts
See Figure D-3.
Pin Name Input/Output Descriptions
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
13 DSC O Distant Station Connect
1 4 NB1 I Digit LSB
15 NB2 I Digit bit 2
16 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