Clear-Com TEL-14 - Manual (Page 25)

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 - 1 1
S5-2 should always be operated in concert so that either both are ON or both are
OFF. If the TEL-14 is used with a Matrix Plus 3 or Eclipse Matrix System, they
should be set to the ON position. If the TEL-14 is used with a Matrix Plus II
System, they should be set to the OFF position. The factory default setting is
ON.
Switch S7-1, S7-2, S7-3 and S7-4 Disconnect tone Selection:
These switches set
the frequency of the call progress tones that the TEL-14 will sense as an
indication of a disconnected call. Call progress tones are the dial tones or busy
tones often heard after the distant caller hangs up. These tones can be used by the
TEL-14 as a means of detecting when a call is complete and must be
disconnected. These tones vary in different parts of the world and in different
telephone systems. The factory default setting for S7 is for North America. The
variety of possible settings is shown in the following table:
Table 2-1: Disconnect Tone Settings
*Note: The appropriate Tone Sense switches S1-2, S1-3, and S1-4 must be set to ON
for 1 Hz cadence, 2 Hz cadence, or steady tones to be sensed as disconnects.
Ring Jumper J6 Ring Voltage Sensitivity: If the ring voltage from the telephone
line is low and the TEL-14 will not answer to it, this jumper can be set to the
60V position. Low ring voltages are often encountered outside of the United
States. The factory default setting is the 90V position, providing sensitivity to the
typical 90 VAC ring found in the United States.
Option Switch Settings for Five Typical Modes of Operation
The TEL-14's panel controls and internal option switches can select any one of a
large number of modes of operation for the TEL-14. The following paragraphs
describe the settings for five of the most common of these modes:
• Intercom-station telephone access
FREQUENCY EXAMPLE
COUNTRY
CADENCE* S7-1 S7-2 S7-3 S7-4
480+620 Hz North America Interrupted ON OFF ON OFF
350+440 Hz North America Steady ON OFF ON OFF
400 Hz Chile, Thailand Interrupted ON ON OFF OFF
425 Hz Austria, Germany Interrupted OFF OFF OFF ON
440 Hz Czech Republic Interrupted OFF OFF OFF OFF