Clear-Com TEL-14 - Manual (Page 16)

T E L - 1 4 T W O - C H A N N E L T E L E P H O N E I N T E R F A C E 2 - 2
DESCRIPTION
The TEL-14 allows two standard loop start POTS (Plain Old Telephone Service)
lines to connect to ports in the Eclipse matrix. The TEL-14 dual telephone
interface is installed in an interface frame.
The following functions are available for each line:
• Front panel indication of "ring" and "off-hook" with a single bi-color LED.
• Front panel mounted manual "hook" switch button for manual operation of
the interface. The "hook" switch function can also be controlled from the
matrix port the line is assigned to.
• Front panel indication of "send level" with a single bi-color LED.
• Front panel "send volume" and "receive volume" controls are provided.
• An "auto gain" button selects whether the automatic gain control limit is fixed
to a normal level or adjustable to other levels. The setting of this button is
retained when the TEL-14 is removed from the frame or powered down.
• Auto-answer of incoming calls is a front panel button selection. An option
switch selects answering each call after 1 or 4 rings. The setting of the front
panel button is retained when the TEL-14 is removed from the frame or
powered down.
• Front panel control for commanding automatic renulling of the telephone line
hybrid.
• Automatic echo suppression DSP.
• Transformer isolation between the telephone line and intercom.
• Occupies a single slot in the interface frame.
• Relay contacts are available to indicate externally an "off-hook" condition on
each line ("A/A1" leads).
INSTALLATION IN AN INTERFACE FRAME
The TEL-14 module can be installed in any available slot in an interface frame.
To install the TEL-14 interface module:
1. Select a slot to install the interface in.
2. Remove the blank plate covering the slot.
3. Set the option switches for the desired mode of operation.
4. Install the TEL-14 in the slot and make sure the card is fully seated.
5. Tighten the TEL-14 assembly's front panel mounting screws.