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A-5000 / Nov 98
L I N E P R E S E L E C T O R M O D U L E
Line Preselector Module
(LSD-500 Controller Panel)
(LSR-500 Rackmount Unit;
optional)
Overview
This optional module consists of an 8-switch control module (LSD-
500) mounted in the A-5000 console and an associated 19-inch rackmount
switcher (LSR-500) that mounts in a remote location. All audio input and
output wiring goes to the rackmount unit, which takes its control from the
console module.
The rack unit accepts eight stereo analog and digital audio inputs (each
input is dipswitch-selectable for either analog or digital) and outputs both
an analog and digital stereo signal, which may be wired back to A-5000
console input ports. Wiring between the console’s LSD-500 preselector
module and the rackmount switcher is via two factory supplied pin-for-pin
DB-25 connector cables: the module’s upper DB is used for control; the
lower for power.
The LSR-500 rackmount unit faceplate has eight indicator LEDs
which show which input has been selected at the console and also
ANALOG and DIGITAL LEDs which light to show what kind of signal
has been selected. A POWER LED is also included. (See drawing next
page)
The rear of the LSR-500 has seven I/O connectors: two DB-9s (analog
and digital output) and five DB-25s (control and power to the LSD-500
module, analog audio in (2) and digital audio in (1). In the center of the
chassis rear is a cutout that allows access to eight dipswitch settings that
determine what type of audio (analog or digital) each input accepts. The
default setting (“off”) is DIGITAL.
Internal Programming Options
There are no internal programming options on the LSD-500 module.
The LSR-500 rackmount unit has the previously mentioned input select
dipswitches (analog/digital).
3
4
2
1
5
SOURCE
PRESELECT
8
7
6