MTG3000 VoIP Trunk Gateway User Manual
37
Copyright @ 2011-2016 Dinstar
4.9.2
E1/T1 Parameter
Select the checkbox on the left of an E1/T1 port, and click the
Modify
button to modify E1/T1 parameters.
Parameter
Explanation
Port No.
The No. of each E1/T1 port
Work Mode
E1 or T1
If E1 is selected for one port, the work modes of all ports are E1.
PCM Mode
PCMA(A LAW) or PCMU(Mu LAW)
If A LAW is selected for one port, the work modes of all ports are A LAW.
Frame Format:
DF
CRC-4
CRC4_ITU
Frame formats of E1 port include DF, CRC-4, CRC4_ITU, and the default
value is CRC-4;
Frame formats of T1 port include F12, F4, ESF, F72, and the default value is
F4.
Line Code
Line codes of E1 include NRZ, CMI, AMI, HDB3, and the default value is
HDB3;
Line codes of T1 include NRZ, CMI, AMI, B8ZS, and the default value is
B8ZS.
Line Built-out
Short Haul (-10DB)
Batch Configure
If Disable is selected, E1/T1 parameter cannot be configured at batch;
If Enable selected, E1/T1 parameter can be configured at batch;
