Voice Trunk Line Board; Figure 2.6 Front View Of The Tepria - Samsung OfficeServ 7200 System Description

2.3.2 Voice Trunk Line Board

This section describes the boards that offer the voice service of trunk lines.
2.3.2.1 TEPRIa
The T1/E1 Primary Rate Interface advanced (TEPRIa) uses a PCB identical to the
OfficeServ 7400‟s TEPRI2 board.
Major Functions
The TEPRIa performs the functions below:

Processes the T1/E1 signals by programming.
Resistor Terminations for T1 line (100 ) and E1 line (120 ).


Endures the ITU-recommended level of surge.

Protects the output port by monitoring line signals.

Crystal-less wander and jitter attenuation/compensation to TR62411.

Attenuates/compensates jitter as recommended in ITU-T I.431 and G703.

Provides the selectable line CODEC (HDB3, AMI).

Performs local/remote loopback for test.

Accommodates High level Data Link Control (HDLC) protocol in Common Channel
Signaling (CCS) mode or Common Associated Signal (CAS) mode.
Specifications
The specifications of the TEPRIa are as follows:

One trunk line port

E1: 30 channels

T1: 23 channels

PRI: 30 channels or 23 channels
Front View of the TEPRIa
The front view of the TEPRIa is shown in the figure below.
P1
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Figure 2.6 Front View of the TEPRIa

OfficeServ 7200 System Description
RUN SYN1 LOS1 AIS1 L21 TP1
CLK
RST
TEPRIa
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