Patton electronic 1082 - Manual (Page 29)

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APPENDIX D
MODEL 1082C AND 1082D INTERFACE PIN ASSIGNMENTS
X.21 Interface
(D-Sub-15 Female Connector)
(DTE /DCE Orientation)
Pin # Signal
1 Frame Ground
2 T (Transmit Data-A) (DTE Source)
3 C (Control-A) (DTE Source)
4 R (Receive Data-A) (DCE Source)
5 I (Indication-A) (DCE Source)
6 S (Signal Element Timing-A) (DCE Source)
7 BT (Byte Timing-A) (DCE Source)
8 SGND (Signal Ground)
9 T/ (Transmit Data-B) (DTE Source)
10 C/ (Control-B) (DTE Source)
11 R/ (Receive Data-B) (DCE Source)
12 I/ (Indication-B) (DCE Source)
13 S/ (Signal Element Timing-B) (DCE Source)
14 BT/ (Byte Timing-B) (DCE Source)