Back Panel Leds - DPS Telecom SCM G2 User Manual

Bantam jacks are provided on the front panel for testing the VF interface — refer to Figure 4.3.
Transmission
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Back Panel LEDs

The four bicolor LEDs on the front panel of the Site Controller SCM provides visual feedback of communication
status.
Note: see section 7.1 for LED display descriptions during firmware uploading.
The CRAFT LED displays communication on the craft utility port — see Section 5 (TTY Interface). The
CRAFT LED will BLINK GREEN when the Site Controller SCM is TRANSMITTING data, and BLINK RED
when the Site Controller SCM is RECEIVING data.
The SER LED displays serial communication to and from the JACE device. The SER LED will BLINK GREEN
when the Site Controller SCM is TRANSMITTING data to the JACE device, and BLINK RED when the Site
Controller SCM is RECEIVING data from the JACE device.
The C (Carrier) LED displays 202 carrier status. The C LED will show GREEN when carrier is seen from
another Site Controller SCM.
Note: The Site Controller SCM will only receive data on the 202 channel when carrier is seen from another Site
Controller SCM.
The A (Activity) LED displays communication status of the 202 service channel. The A (Activity) LED will
BLINK GREEN when the Site Controller SCM is TRANSMITTING data from the service channel, and BLINK
RED when the Site Controller SCM is RECEIVING data from the service channel.
The FA LED displays the status of the fuse. The FA LED will show SOLID RED when the fuse has failed.
The A and B (Power) LEDs displays the status of the power polarity. The A and B (Power) LEDs will show
SOLID GREEN when the power polarity is correct, and SOLID RED when the power polarity is backwards.
LINE MON EQP
TX
To
Facility
RX
Plug in here
to connect to line
(disconnects Site
Controller SCM)
(non-intrusive)
Fig. 4.7. Front panel 202 jacks pinout
Fig. 5.1. Front panel LED display
To Site
Controller
SCM
Plug in
Plug in here
here to
to cnnnect to
monitor
the KDA 864-E2
signal
(disconnects line)
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