page 11 – 3
RD-12 / March 99
LINE PRESELECTOR MODULE
Hook-Ups
LSD-5 Line Preselector Module
All user wiring to and from LSD-5 modules takes place at AMP 12-
pin connectors mounted directly beneath module on the console
mainframe’s bottom pan. There are four connectors per module (AMP A
and B for control, AMP C and D for power) that wire to two DB-25s on
the LSR-500 chassis rear.
LSD-5 C0NTROL CONNECTIONS (AMP A, B)
Pin 1 - Digital Ground (LSR-500 DB-25 Pin 25)
Pin 2 - N/C
Pin 3 - N/C
Pin 4 - Digital Ground (LSR-500 DB-25 Pin 11)
Pin 5 - N/C
Pin 6 - N/C
Pin 7 - Digital Ground (LSR-500 DB-25 Pin 22)
Pin 8 - Console Clock (LSR-500 DB-25 Pin 10)
Pin 9 - Console Clock (LSR-500 DB-25 Pin 21)
Pin 10 - Digital Ground (LSR-500 DB-25 Pin 8)
Pin 11 - Console Reset (LSR-500 DB-25 Pin 20)
Pin 12 - Console Reset (LSR-500 DB-25 Pin 7)
Pin 1 - Digital Ground (LSR-500 DB-25 Pin 25)
Pin 2 - Line 8 (LSR-500 DB-25 Pin 6)
Pin 3 - Line 7 (LSR-500 DB-25 Pin 18)
Pin 4 - Digital Ground (LSR-500 DB-25 Pin 5)
Pin 5 - Line 6 (LSR-500 DB-25 Pin 17)
Pin 6 - Line 5 (LSR-500 DB-25 Pin 4)
Pin 7 - Digital Ground (LSR-500 DB-25 Pin 16)
Pin 8 - Line 4 (LSR-500 DB-25 Pin 3)
Pin 9 - Line 3 (LSR-500 DB-25 Pin 15)
Pin 10 - Digital Ground (LSR-500 DB-25 Pin 2)
Pin 11 - Line 2 (LSR-500 DB-25 Pin 14)
Pin 12 - Line 1 (LSR-500 DB-25 Pin 1)
POWER ANALOG 1DIG
Model LSR-500 Line Selector
8-Line Analo
/Di
ital Rackmount Switcher
2345678
LINE
ANALOG/DIG SELECT
DIGITAL INPUTSAUDIO OUTAUDIO INPUTS 5-8AUDIO INPUTS 1-4
The LSR-500 Rackmount Switcher Unit (front & rear)
Key diagram showing
back of typical 12-pin I/O
connector plug, with pin
numbers oriented as they
would be seen while wir-
ing. Beveled corners cor-
respond to PCB mounted
mating sockets.
5 46
8 79
11 1012
2 13
AMP A connector
AMP B connector
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