12
8 x 2A Dual Stereo Audio Switcher Installation Manual
Broadcast Tools, Inc.
SPECIFICATIONS
INPUT LEVELS:
-10 to + 8dbm, balanced/unbalanced bridging. > 10k
Ω
.
OUTPUT LEVELS:
Stereo balanced output 1, 2 and mono output 1, + 24 dbm.
@ 600
Ω
. Mono unbal output 2, +18 dbm @ 600
Ω
.
GAIN:
15db.
FREQ RESPONSE:
20 to 20 Khz; + .25 dB / 20 to 30 Khz; + .5 dB
SIGNAL/NOISE RATIO: >85 dB nominal, unweighted, below +4dbm.
DISTORTION:
Less than 0.01% THD at + 18dbm.
CROSSTALK:
-80 dB @ 1khz / -65 db @ 10 khz from adjacent off channel.
MIX INPUT/OUTPUTS:
Unbalanced summing inputs @ 10k
Ω
, 0 dbm.
Unbalanced line outputs @ 100
Ω
, 0 dbm.
SWITCHING METHOD:
Two sealed relays, utilizing 2-form-C Bifurcated-Crossbar
silver alloy with gold overlay contacts.
LOGIC:
8 bit CMOS Microprocessor / EEprom Memory.
SILENCE SENSOR:
Front panel silence LED indicator, Open collector output,
input to controller and serial flag. Defeat input.
OPERATION CONTROL:
Front Panel
- Momentary switches.
Remote
- Closure to ground.
RS-232 -
Serial 2400/9600 baud, 8N1.
STATUS:
Front Panel
- LED indicator in Switch.
Remote
- Open collector .
RS-232 - S
erial. 2400/9600 baud, 8N1.
INTERFACING:
Audio
- Rear panel wire captive terminals.
Remote Control
- Male 25 pin “D” connector.
RS-232 Serial
- 6P4C Modular, Adapter & cable supplied.
POWER:
16 Vac 730 ma. 120 Vac 50-60 hz wall transformer.
(240 Vac 50-60 hz optional)
MECHANICAL:
19" X 1.75" X 10.0" (WHD) / Weight: 7.0 lbs.
