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Introduction ~ G-Link Networking
6
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D. Mics 1–4. Up to four mic/line-level inputs (selectable) can be connected
using the three-terminal Phoenix connector(s).
E. G-Link In, Out. These RJ-45 connectors are part of the AP400’s high-
speed digital bus network, which passes audio between units.
F. RS-232. This female DB-9 serial port is for connection between the AP400
and a PC, modem, or other custom remote control. For serial
communications protocol, see Appendix E, page 43.
G. Control/Status. This female DB-25 connector is used to interface parallel
control to the AP400. Most of the pins on this connector can be
programmed to perform any function via a contact closure to ground. For
instructions on how to program the control and status pins, see page 61 or
the AP-Ware help file. These pins go low when active. The six presets can be
activated at any time via these connectors. For pinouts, including a
description of the default settings, see Appendix C, page 42.
H. Speaker. One five watt, 4-16Ω speaker can be directly connected to the
AP400, eliminating the need for a power amplifier.
I. Telco Line. Connects to your telephone line source.
Telco Set. Connects to your telephone handset.
Digital technology can provide a distinct advantage in designing and controlling
teleconferencing systems. The ability to network with additional AP units (for a
maximum of 64 mic inputs) makes the Audio Perfect systems ideal for room
combining applications or larger applications which require more microphone inputs.
The G-Link gives you the ability to interconnect the AP400 with other Audio
Perfect units (additional AP400s, AP10s, and AP800s). The maximum distance
between connected ClearOne units is 20 feet. ClearOne Communications recommends
that category five twisted-pair (10Base) cable be used.
G-Link bus
This digital bus is on every Audio Perfect product. It is a mix-minus bus which
allows audio to be routed to any destination on the G-Link network. The AP400 has
four digital buses: X-bus, Y-bus, Z-bus and G-Link EC Reference bus.
G-Link Network
Do not attempt to create a
system using more than
64 microphones. You can
combine up to eight AP800s or
AP400s.
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