Clear-Com PS-10 Manuel d'instructions télécharger pdf (Page 12)

PS-704 FOUR-CHANNEL POWER SUPPLY

1-6

1 POWER SWITCH: Switches the AC power to the PS-704 on and off.

When in the on position, the LED indicator to the left of the switch should

illuminate. Check the short indicators for evidence of system

malfunctions.

3 PROGRAM SEND ON/OFF: These toggle switches, one for each

channel, connect program audio to that channel. The number of active

sends will not affect the overall send level to any channel.

4 PROGRAM SEND LEVEL: These potentiometers, or trim pots (one for

each channel), adjust the level of program heard in that channel. The

program switch must be on for the control to function on that channel.

(The level controls work in conjunction with the program in [6] level

control on the rear panel.) For a higher program level, turn the control

clockwise. For less program level, turn the control counter-clockwise. If

the control is all the way up on a channel and the program level in the line

is not loud enough, increase the input level with the program in control on

the rear panel. Conversely, if there is still program heard on a channel

when its level is all the way down, decrease the program in level. Any

change in the program in level control on the rear panel to adjust for one

channel will necessitate adjustment on the other channels to compensate.

6 PROGRAM INPUT LEVEL ADJUSTMENT (rear panel): Use this

trim pot to adjust the overall input level of the external program. Turn the

control clockwise to increase the gain and counter-clockwise to reduce it.

Note: Do not force the trim pots past their stop points as this will

damage them.

7 TERM ON/OFF: These toggle switches activate the termination for their

respective channel when switched to on. These should always be on

unless there are other power supplies or terminated main stations in the

system. If there are other possible terminations in the system, it must be

decided where each channel’s single termination will be.

REAR PANEL CONNECTORS

5 PROGRAM INPUT: This 3-pin female XLR jack accepts a balanced or

unbalanced line-level signal. This is typically a feed from an audio board,

an air feed from a studio to remote site over a phone line, or an audio cue

track. Send levels to the individual channels are controlled with a

combination of the program in level and the program send levels on the

channels.

8 INTERCOM LINE CONNECTOR: There are two 3-pin male XLR

jacks per channel, wired in parallel, or looped through. All the stations in

the system are ultimately connected to the station through these jacks.

Because intercom audio is two-way, they are neither inputs nor outputs,

but may be thought of as “ports.” Pin #1 is connected to the shield and

carries the signal ground. Pin #2 carries the DC voltage that runs the

remote stations. Pin #3 carries two-way audio and call signals.

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Clear-Com PS-10 Manuel d'instructions Page 12

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