Voice Trunk Line Board - Samsung OfficeServ 7100 series System Description

2.3.2 Voice Trunk Line Board

This section describes the boards that offer the voice service of trunk lines.
TEPRI (a/2) Cards is only support E1 (T1) PRI function, but not supports for E1 (T1)
Digital Trunk function.
2.3.2.1 TEPRIa
TEPRIa board provides the digital trunk line. TEPRIa board provides ISDN E1 (T1) PRI,
and functions as the Q-SIG. This board transmits voice via the trunk line and a channel
transmits the voice data of 64 Kbps.
Main Functions
TEPRIa voice trunk line board performs the functions below:
Selection function for T1/E1/PRI signal process through programming

Function of a resistance circuit that satisfies both of the T1 (100 Ω) and E1 (120 Ω)

 Surge protection over the standard of International Telecommunication Union (ITU)
Output port protection for line monitors

Jitter function that satisfies ITU-T I.431 and G.703

Providing selectable line Codecs (HDB3, AMI)

 Local/remote loop function
Function for the HDLC or Common Associated Signaling (CAS) through the Common

Channel Signaling (CCS)
Specifications
The specifications of TEPRIa voice trunk line board are as follows:

PRI: 30 channels or 23 channels

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OfficeServ 7100 System Description
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