Specifications

OfficeServ 7200 General Description Guide CHAPTER 2. OfficeServ 7200 Hardware
© Samsung Business Communications Page 2-9
3.2 Voice Trunk Line Module
This section describes the modules that offer the voice service of trunk lines.
3.2.1 TEPRI
The TEPRI module provides the digital trunk line. A TEPRI module provides E1,
T1, or ISDN PRI and functions as the Q-SIG. This module transmits voice via the
trunk line and a channel transmits the voice data at 64 kbps.
Major Functions
The TEPRI voice trunk line module performs the following functions:
y Processes the T1/E1 signals by programming.
y Resistor Terminations for T1 line (100 Ω) and E1 line(120 Ω).
y Endures the ITU-recommended level of surge.
y Protects the output port by monitoring line signals.
y Crystal-less wander and jitter attenuation/compensation to TR62411.
y Attenuates/compensates jitter as recommended in ITU-T I.431 and G703.
y Provides the selectable line codec (HDB3, AMI).
y Performs local/remote loopback for test.
y Accommodates High level Data Link Control (HDLC) protocol in Common
Channel Signalling(CCS) mode or Common Associated Signal (CAS) mode.
Specifications
The specifications of the TEPRI voice trunk line module are as follows:
y One trunk line port
y E1 : 30 channels
y T1 : 24 channels
y PRI : 30 channels