Installation manual

CHAPTER 2. Hardware of OfficeServ 7400

2-16

y Crystal-less wanders and jitter attenuation/compensation to TR62411.

y Attenuates/compensates jitter as recommended in ITU-T I.431 and G703.

y Performs local/remote loopback for test.

Specifications

The 4BRI module has 8 line ports.

Front View

The front view of the 4BRI voice module is shown in the figure below:

Figure 2.7 Front View of 4BRI

The components on the front panel of the 4BRI have the functions below:

Table 2.11 Ports and LEDs of 4BRI

Port, LED Function Description

P1-T~P4-T Office (trunk) Port

P1-S~P4-S Internal (station) Port

RUN LED 4BRI Board Operation Status

- Off: 4BRI board is abnormal or power is disconnected

- Blink: 4BRI board is properly operated

ACT LED 4BRI Board LAYER1 SETUP Status

- Off: LAYER1 SETUP Abnormal

- On: LAYER1 SETUP Normal

2.3.2.4 8TRK

The 8TRK module has 8 ports of analog trunk lines. One module has the PRS, MPD and

CID paths. In addition, the module provides voice through trunk lines and transmits the

voice data of 64 kbps to each channel.

4BRI

P1-T P2-T P3-T P4-T

RUN

P1-S P2-S P3-S P4-S

ACT