User Manual Part 2

Lynx.GX Installation and Management
IDU VF PORT
The front panel VF (Voice Frequency) port supports standard audio interfaces (600 ohm balanced, 0 dBm
maximum level) on an 8- pin modular jack as shown below. This port can be connected to an external orderwire
unit, and is bridged to the Orderwire RJ-11 connector. The green LEDs on the VF port have no function. The
front view is illustrated.
Figure 6. VF Plug Pin Assignments
VF Plug Connector Pin Assignment Description
Pin Description Signal Direction
1 NC: No Connection
2 VF OUT-tip: Audio Output (tip) Output
3 VF OUT-ring: Audio Output (ring) Output
4 NC: No Connection
5 NC: No Connection
6 VF IN-ring: Audio Input (ring) Input
7 VF IN-tip: Audio Input (tip) Input
8 NC: No Connection
Appendix D Connectors and Pin Assignments 76