Specifications

Page 13–4
FOCUS System Manual
20 seconds. If the module is non-functional,
the status LED stays red, even after 20
seconds have elapsed.
4. Connect the proper wiring to the V4W
interface module.
The standard V4W interface module has two
terminal blocks. As Figure 13-1 shows, the
block used to connect signaling devices is
labeled “P2 SIGNALING,” and the block
used for audio connections is labeled “P1
AUDIO.” Both are compression-type terminal
blocks that easily accommodate up to one 14
AWG stranded wire. To connect a wire to any
position on either terminal block, turn the
screw counter-clockwise, slide the wire
beneath the spring, and then tighten the screw.
Connect only the channels you are using on
each terminal block. You do not have to
connect a ground to any unused channels, or
terminals.
To transmit signaling information, connect
your wires to the P2 terminal block according
to the position assignments shown in Figure
13-1. Remember to remove the jumper, if
supplied, from the B–M positions on the
channel you are wiring for signaling.
Voltage used with the signaling devices can be
supplied from FOCUS. B is signaling voltage
and G is ground.
Connect your audio wires to the P1 terminal
block according to the position assignments
shown in Figure 13-1. There are two input
connections and two output connections
(chan. A & chan. B) on the block.When
connecting four-wire telephone cable, be
careful to connect the external equipment
transmit (or output) to the V4W input.
The “tip” and “ring” connections on P1 are as
follows: the first position on the block
(position 1 for input A) is the “tip” connec-
tion, the second is the “ring” connection, and
so on down the block for each input/output.
If you are using regular telephone wire for
connections, follow the color codes shown for
P1 in Figure 13-1. (i.e., Y=yellow, G=green
for channel A input, etc.).
The MVI interface has one AMP “Champ” 50
as shown in Figure 13-2. It is used to interface
up to three voice modules to termination
points like patch panels, terminal blocks or
RJ-21X terminations. It has six jumpers on the
Figure 13–2.
V4W Multiple Voice Interface Module
Figure 13–3. MVI Jumpers.
Type I
MVI Jumpers
(Inside/Top)
CKT1CKT2CKT3CKT4CKT5CKT6
Type
IV/V