Bay Networks 8000 RAC Installing Manual page 128

Appendix A Port Pins and Signals
Installing the Model 8000 Remote Access Concentrator
A-8
Table A-5. Sync Port Pin/Signal Allocations (continued)
Pin Signal Description
41 UNBE Unbalanced Enable - RS-232 only (active high)
42 V35D V.35 interface (active low)
43 GND Signal Ground
44 SNDC Send Common