Version 6.6 15 April 2012
Hardware Installation Manual 3. Physical Description
3.1.3 BRI Module
The BRI module provides the Integrated Services Digital Network (ISDN), BRI interfaces.
Up to two BRI modules can be installed in the device. Each BRI module can provide up to
four BRI line interfaces and therefore, the device can support up to eight BRI interfaces.
3.1.3.1 Port Description
Each BRI module provides up to four RJ-45 ports. The ports are labeled I, II, III, and IIII.
Figure 3-4: BRI Module
3.1.3.2 LED Description
Each BRI port provides a LED for indicating operating status, as described in the table
below:
Table 3-4: BRI Module LED Description
Color State Description
Green
On Physical layer (Layer 1) is synchronized (normal operation).
Red
On Physical layer (Layer 1) is not synchronized.
- Off
BRI line is not active.
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