DV-332 Analog/Digital User Guide
51
6.2 Digital trunk configuration
You can configure digital trunk, line coding, signaling type and so forth.
GW/CONFIG/DTRUNK> change ©
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Change Digital Trunk Configuration Command Usage
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change trunk# <parameter> <value>
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parameter ; type - digital trunk type
; lcode - line code
; frame - frame mode
; sig - signaling type
; vgain - Voice Output Gain
; igain - PCM Input Gain
; imp - Cable & Tx/Rx impedance
value ; type - E1|T1 (E1:2.048Mhz, T1:1.544Mhz)
; lcode - AMI|HDB3|B8ZS (AMI(T1, E1),HDB3(E1),B8ZS(T1))
; frame - D4|ESF|SLS96|CRC4|NOCRC4 (D4~SLS96:T1 CRC4,NOCRC4:E1)
; sig - R2|DTMF|ISDN (R2,DTMF:CAS ISDN:CCS)
; vgain,igain - -31 ~ 31 (dBm)
; imp - 75|120 (75: 75(Ohm), 120: 120(Ohm)
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GW/CONFIG/DTRUNK>
Type : This field configures digital trunk type. E1 or T1. Default value is E1.
Lcode : This field configures line code type. Choose AMI/B8ZS in T1 trunk and AMI/HDB3 in E1
trunk. Default value is HDB3.
Frame : This field configures frame mode. Choose D4/ESF/SLS96 in T1 trunk and NOCRC4/CRC4 in
E1 trunk. Default value is CRC4.
Sig : This field configures signaling type. Choose CAS in R2/DTMF and CCS in ISDN PRI. Default
value is CCS.
Vgain/igain : These options change voice volumes on digital trunks.
Imp : This field configures cable impedance. Korean domestic standard value is 120ohm. Default
value is 120ohm.
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