Clear-Com HX System Frames - Manual (Page 57)

A FOR-22 interface connects to an Eclipse HX matrix frame through the two RJ-45
connectors on its rear panel.
The top RJ-45 is for the first channel of the interface module. The lower RJ-45 is for the
second channel.
The user side of the FOR-22 for each channel appears on a DB-9M connector on the rear of
the IMF-3 or IMF-102 frame. Each channel is identical. The following sections describe how
to wire for the various types of inputs and outputs available on the DB-9M connector:
• External audio devices.
• Call signal input.
• Relay contacts.
Note:
Shielded CAT5 cable should be used, where possible.
External audio devices
Connect external audio devices to the FOR-22 ports through the two DB-9M connectors
labeled “I/O” on the rear panel. Both the audio input and the audio output are transformer
isolated.
Tip: For more information on the various level ranges available on the input and output, see
the FOR-22 manual.
Call Signal Input
The Call Signal input is used to receive a call/logic input signal from an external device and
send it to the matrix. The voltage across the pins required to receive a call signal ranges
from 4 - 50V; + / - AC. The input will draw between 4 and 8 mA.
Relay Contacts
Each FOR-22 interface channel features a relay that is associated with the logical call signal
output of a port. A relay’s function depends on the function assigned to the FOR-22 port
through the EHX configuration software. A relay can be assigned to operate with any label in
the system: when that label is activated (either by a talk, listen, or both, as set from the
configuration program), the relay will activate.
Tip: For more information about configuring a relay, see EHX Help.
The relay can be used to activate an external device, such as an applause light in a studio, a
cue light, or a security-door lock. The relays feature both normally open and normally
closed contacts. The contacts are rated at 1 A at 24 VDC; they are not designed for
switching mains AC line voltage.
57 Eclipse HX Matrix Frame Installation Guide