3
|
P a g e
Physical Description of Rear Panel
1
CPU
Central processing unit (CPU) module, providing:
Reset pinhole
\\
button for resetting the device (2-10 second press) and restoring
factory defaults (11-30 second press)
STAT
LED indicating CPU status (same as
SYS
LED on front panel)
RS-232 serial interface port (RJ-45)
USB Type-A
port which can be used, for example, for various storage capabilities
with an external USB hard drive or flash disk
2 x 100/1000Base-T (Gigabit) Ethernet ports (RJ-45) with status LED:
Green On
Ethernet link established
Green Flashing Data is being received or transmitted
Off
No Ethernet link
2
PS1 / PS2
Power Supply modules with status LED:
Green On
Connected to power source, chassis receiving power and Power
Supply module's fan is operating normally
Orange Flashing
Connected to power source, but chassis not receiving power or
fault detected in Power Supply module's fan.
If only one of the Power Supply modules is connected to the
power source, the LED on the disconnected Power Supply
module flashes orange.
Off
No power
3 FXS Blades
Each FXS blade provides 3 FXS port connectors (50-pin Telco connector of Centronics
type). Each connector provides 24 FXS interfaces and therefore, each blade provides up to
72 FXS interfaces (3 x 24 FXS). The device can be housed with up to 4 FXS blades. Each
blade provides a status LED:
Green On
FXS blade initialization completed and functioning normally
Orange On
Less than a third of the FXS ports are out of service.
Red On
FXS blade initialization has not completed or a failure detected
in the FXS blade due to more than a third of the FXS ports are
out of service or a DSP failure
Off
No power
