CHAPTER 2. OfficeServ 7400 Hardware
2-16
© Samsung Business Communications
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 eight line ports.
Front Panel
The front panel of the 4BRI voice module is shown below:
Figure 2.6 Front Panel of 4BRI Module
The components on the front panel of the 4BRI have the functions below:
Table 2.10 Front Panel of 4BRI Module
Port / LED
Function Description
P1-T to P4-T
BRI trunk ports
P1-S to P4-S
BRI station ports
RUN LED
On: Circuit is connected to this port.
ACT LED
On: Circuit is in use on this port.
2.3.2.4 8TRK
The 8TRK module provides eight ports of analogue trunk lines. One module has the PRS,
MPD and CID paths. In addition, the module provides voice through trunk lines and trans-
mits voice data at 64 kbps to each channel.
Main Functions
The 8TRK voice trunk line module performs the following functions:
y
Detecting ring reception
y
Detecting on/off-hook
y
Transmitting dial pulse
y
PRS
y
MPD (optional)