Vtrc Interface Connector; Vfc Optical Bypass Switch Connector - Data General AViiON Series Customer Documentation

External Device Connector Pin Assignments

VTRC Interface Connector

Each VTRC controller board includes a 9-pin D connector (J3.) This connector
provides the signal interface for direct or indirect connection to a network Trunk
Access Unit (TAU). Figure C–10 shows the signals and pin numbers for the VTRC
J3 connector.
Pin Signal
1 Ring Receive
2 Ground
3 +5
4 Ground
5 Ring Transmit
6 Ring Receive
7 Ground
8 Ground
9 Ring Transmit

VFC Optical Bypass Switch Connector

The VFC board's Tx and Rx connectors for Physical Units A and B are ST-compatible
jack-type connectors, and do not have pins. The optical bypass switch, however, has
a 6-pin mini-DIN connector at the VFC board end. Figure C–11 shows the signals
and pin numbers for the optical bypass switch connector.
Pin Signal
1 +5 V secondary switch
2 +5 V primary switch
3 GND primary switch
4 GND secondary switch
5 Common to pin 6
6 Common to pin 5
Figure C–11 VFC Optical Bypass Switch Connector
C-14
Figure C–10 VTRC Connector Signals
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