AltiGen MAXCS 7.5 Telephony Hardware - Manual (Page 64)

Functional
status LEDs
Board status
LEDs
Vision Access Boards
58 Telephony Hardware Manual
Figure 6. ALTI-V0404 (4x4 analog board)
Analog Functional Status LEDs
The analog boards have two LEDs to show functional status. Their location is shown in
Figure 6 and Figure .
LED A (Green) Status
ON
Normal operation. The +12v fuse is okay, and the analog
telephony power is on.
LED B (Red) Status
ON
Either the +12v fuse is blown, or the analog telephony power is
off. When the red LED is on, the green LED will be off.
OFF Normal operation is OFF.
Audio Input and Output Ports
Each analog access board has:
•
one audio input port (3.5mm) for connecting a music-on-hold device
•
one audio output port for connecting a paging device
You may not use both audio ports on any single access board. You may use the audio
input port on one access board and the audio output port on another access board.
Please note the following:
• Only one audio input/output source is supported per system.
• The first extension port is shared with audio input/output port (Rx/Tx). Do not wire
an analog phone to the first extension port when one of the audio ports is activated.