Intercom Card Wiring - Radio Systems Millenium-A Analog Console Installation And Operation Manual

Radio Systems Millenium-A Console
To interconnect the Intercom Card to Radio Systems' Millenium Analog Consoles
Intercom Control
(To J1 on the Output Bd.)
Table Top Speaker
Drive Volume
Remote Console
Drive Volume
Table Top Speaker
Receive Volume
Remote Console
Receive Volume
Console Intercom 1 +
Console Intercom 1 -
Shield
Table Top Speaker 1 Hot
Table Top Speaker 1 Switched
Console Intercom 2 +
Console Intercom 2 -
Shield
Table Top Speaker 2 Hot
Table Top Speaker 2 Switched
Wiring
1. Connect operators mic loop thru point (or other line level source) to output board talk-back input (J37 pins 1 & 2).
2. Connect provided patch cables from squawk box card to output board (control cable from squawk back card J1 to console connector J1 and
the audio cable from squawk box card J2 to console conenctors J36 & J37).
3. Install provided cables to connect J3 (talkback control) and J4 (logic board). However, a factory tech. note is available for field modification
for single unit (no logic board required) operation.
4. The Intercom Card has 4 identical I/0 Sections. Each can host either a table-top speaker or another console that has been fitted with an
intercom card.
5. Connect speakers to terminals labeled "table-top speaker hot" and "table-top speaker switched" (1-4). Use shielded cable. Consult intercon-
nection diagram on next page for hook-up. Select table-top speaker on console selector buttons for hands-free mode. Table-top speakers can
"call" the console via call button.
6. Connect up to four console intercoms to terminals labeled "console intercom +" and "console intercom -". Consoles must select each other
to establish a push-to-talk pathway.
7. A maximum of four stations (any combination of table-top and console units) may be connected.
8. J1 thru J4 must be programmed to select a console or table-top speaker for each channel.
9. Set VR2 for Intercom output level and set VR26 for Intercom input level
Installation
When ordered with the console, this optional board normally will be factory-installed. For field installation, use the four plastic stand-offs
provided to mount the board on the inside rear console wall near the associated connectors. Wire with supplied harness cables. Install
provided cables to connect J2 (audio in and out), J3 (talkback control) and J4 (logic board). However, a factory tech. note is available for field
modification for single unit (no logic board required) operation.
Illustration E-6

Intercom Card Wiring

Table-top/Console Programming
(Program J1 thru J4)
Intercom Audio
(To J36 & J37 on
Jump left pins Jump right pins
the output bd.)
for table-top for console
1
2
3
4
5
6
7
8
9
10
Output Board
Talk-Back Connectors
These pre-made factory
J1
cables included with
the squawk box card 3 +15V
2 GND
1 Squawk Ctl
J36
5
4
J2-2
3 GND
2
J2-3
1 TB Out
J37
5 (Cue In)
J2-1
4
3
2
1
TB In +
VR26
Table Top Speaker 4 Switched
10
Table Top Speaker 4 Hot
9
Shield
8
Console Intercom 4 -
7
Console Intercom 4 +
6
Table Top Speaker 3 Switched
5
Table Top Speaker 3 Hot
4
Shield
3
Console Intercom 3 -
2
Console Intercom 3 +
1
Page 39
Install shorting jumper for
unbalanced patch point inputs
From host's mic patch point
on 6 input board
Intercom Output Level Set
( External Cue Input - located
VR2
on circuit board far right)
Intercom Input Level Set