How To Use; Description Of The Front Panel; Power Supply Indicator; Alarm Indicators - Raisecom RC802-60B Series User Manual

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4.1. Description of the Front Panel

Figure 1. The front panel of RC802/804/806-60B module

4.1.1. Power Supply Indicator

PWR power supply indicator (green): Steady on, built-in power works in good condition.

4.1.2. Alarm Indicators

Loss of signal in E1 channel:
LLOS local signal loss alarm in E1 channel (red): ON when the receiving signal loss
occurs at the local site.
RLOS remote signal loss alarm in E1 channel (red): ON when the receiving signal loss
occurs at the remote site.
Alarm of optical port:
L/R LOS receiving signal loss alarm in optical link (red): ON when the receiving signal
loss occurs at the local site; Flashing, when the receiving signal loss occurs at the
remote site.
LERR receiving signal error alarm in optical link (yellow): ON when LOF (loss of frame
alignment) occurs or the receiving BER exceeds 10
RERR receiving signal error alarm in optical link (yellow): ON when LOF (loss of frame
alignment) occurs or the receiving BER exceeds 10

4.1.3. E1 Interface

RC802/804/806-60B series modules provide DB9 connectors for dual E1 channels
interface.
75Ω unbalanced: using CBL-E1-DB9M/4BNCF cable to provide 2 BNC E1 tributaries in
accessory
120Ω balanced: using CBL-E1-DB9M/2RJ45 cable to provide 2 RJ45 E1 tributaries in
accessory. Note: please modify the SW4 default setting firstly.

4. How to use

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level at local site.
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level at remote site.