Telos Alliance Axia Quasar, Руководство пользователя, Страница: 180 / 230

GPIO Codec Logic
Name Pin Type Notes
INPUTS
ON Command 11 Active Low Input Turns channel ON
OFF Command 12 Active Low Input Turns channel OFF
TALK (to CR)
Command 13 Active Low Input Mutes channel outputs and routes
source audio to PFL speakers
MUTE Command 14 Active Low Input Mutes channel outputs
TALK (to SOURCE)
Command 15 Active Low Input Allows an external key to activate
channel TALK TO SOURCE function.
OUTPUTS
ON Lamp 1 Open Collector to
Logic Com- mon
Return Illuminates when channel is ON unless
TALK or MUTE are active
OFF Lamp 2 Open Collector to
Logic Common Return Illuminates when channel is OFF.
TALK (to CR) Lamp 3 Open Collector to
Logic Common Return Illuminates when TALK is active
MUTE Lamp 4 Open Collector to
Logic Common Return Illuminates when MUTE is active
TALK (to SOURCE)
Lamp 5 Open Collector to
Logic Common Return Illuminates when the channel TALK TO
SOURCE function is active.
POWER & COMMON
Source Common 7 Logic Common Connect to ground of source device or
to Pin 8
Logic Common 8 Internal 5 Volt return Can be connected to Pin 7 if source is
not providing common
Logic + 5 Volt supply 9 Logic Supply,
Individually Fused Can be connected to Pin 10 if source is
not providing volt- age; active only
when source has been assigned to
channel.
Source Supply 10 Common for all 5
inputs
Connect to power supply of source
device or to Pin 9
NOT CONNECTED 6