ASL INTERCOM PS 260 Manuale d'uso - Pagina 5

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5.0
REAR PANEL CONTROLS
At the rear panel you will find the connectors for intercon-
necting the PS 260 with the ASL intercom system(s) and
the connectors for connecting 4-wire systems or audio
equipment.
8 AUDIO INPUT connector
This XLR-3 connector is for placing an audio signal on
the intercomline. It is electronically balanced in the
standard version.
An extra balancing transformer is optional (PS 260/T).
Pin assignments :
1. 0V / ground shield
2. signal +
3. signal -
9 AUDIO OUTPUT connector
This XLR-3 connector is for monitoring the intercom
line.
It is transformer balanced and capable of driving a 600
ohms load.
Pin assignments :
1. 0V / ground shield
2. signal +
3. signal -
6.0
SUM OUTPUT(S)
The PS 260 offers you the possibility of monitoring both
intercomlines with one interface.
When one interface monitors two intercom lines, both
audio signals of the intercomlines will appear on the audio
output connector
Changing procedure :
a. Unscrew the upper cover plate and slide it backwards.
b. Place the unit in front of you, facing the front panel.
c. Depending on which kind of monitoring you need, the
following procedures should be followed (next column)
d. Screw the cover plate back in place.
User Manual PS 260 / Issue 1 © 1994 ASL Intercom, Utrecht, Holland.
10 INTERCOM IN connector
This XLR-3 connector is for connecting the intercom
line.
Pin assignments :
1. 0V / ground shield
2. +30V power wire
3. audio wire
11 INTERCOM LINK connector
This output is for extending the intercom line to other
user stations. It is linked to the intercom line input
connector and has the same pin assignments.
Connection A
function
:
Output of interface 1,
monitors intercom lines 1 + 2
action
:
Connect the left tag of interface 1 with the
right tag of interface 2.
Connection B
function
:
Output of interface 2,
monitors intercom lines 1 + 2.
action
:
connect the left tag of interface 2 with the
right tag of interface 1.
Connection A + B
function
:
Outputs of interface 1 and 2 monitor
intercom lines 1 + 2
action
:
cross connect the tags.
5