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TRML R
C
EMOTE
ONTROL
I
NSTALLATION
The TRML series tone remote will operate with any remote system using the EIA standard tone control format.
Power
The remote is powered from 120V 60Hz AC using the supplied wall pack transformer. In most cases, when the
supplied wall pack is used, a standard grounded outlet is acceptable. An ideal ground point would consist of a ½
inch copper rod driven six feet into the earth with at least a #16 AWG copper wire connecting it to the GND terminal
of the remote, taking the shortest path possible.
Phone lines
The TRML is designed to work with a high quality voice grade circuit such as leased lines or in-house twisted pair
wiring for each line used. Circuits and wiring must have no dial tone, talk battery, or signaling. DC continuity is not
required.
Connections are made to the remote, via the supplied 6 foot modular Cat5/5e/6 cable, to J5 for two wire operation
and to J4 and J5 for four wire operation. J5 provides Tx and Rx connections for two wire lines. J4 provides Tx
connections and J5 provides Rx connections for four wire lines. Figure 2 shows the back views of J5 and J4. The
TRML comes standard with jumper selectable two wire or four wire operation. The TRML is shipped from the
factory in the two wire mode. Refer to Table 3 to configure jumpers for four wire mode.
Two Wire
L3 Tx/Rx
L1
L2 Tx/Rx
Tx/Rx
1 2 3 4 5 6 7 8
J5
Local Control Contact Closure (-CC option)
The optional local control contact closure provides a normally open dry relay contact closure during PTT on each
individual line. The relay is not activated during intercom. Each relay can be also be configured to close to ground
by installing 2.7 ohm resistors in R180, R179, R178, R177 on the middle board for Lines 1, 2, 3, 4, respectively.
Figure 3 shows the back view of J3.
8
C
ONSOLE
L4 Tx/Rx
Figure 2 - Phone line Connections
Local 1 -
Local 3 +
Local 2 -
Local 2 +
Figure 3 - Contact Closure Connection
Four Wire/Full Duplex
L3 Rx
L2 Rx
L1 Rx
1 2 3 4 5 6 7 8
J5
Local 1 +
Local 3 -
Local 4 +
Local 4 -
1 2 3 4 5 6 7 8
J3
L3 Tx
L4 Rx
L2 Tx
L1 Tx
1 2 3 4 5 6 7 8
J4
L4 Tx
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