Hardware Installation Manual 3. Physical Description
Media Gateways & SBCs 19 Mediant 1000B Gateway & E-SBC
3.2.3 BRI Module
The BRI module provides the Integrated Services Digital Network (ISDN), Basic Rate
Interface (BRI) interfaces. Up to five 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 20 BRI interfaces (i.e., 5 modules x 4 ports).
3.2.3.1 Ports Description
Each BRI module provides up to four analog RJ-45 ports. The ports are labeled I, II, III,
and IIII.
Figure 3-4: BRI Module
3.2.3.2 LEDs Description
Each BRI port provides a LED for indicating operating status, as described in the table
below:
Table 3-5: BRI Module LEDs Description
Color State Description
Green
On Physical layer (Layer 1) is synchronized (normal operation).
Red
On Physical layer (Layer 1) is not synchronized.
- Off
Trunk is not active.
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