Multitech MULTIVOIP MVP-2410 User Manual page 155

MultiVOIP User Guide
Field Name
T1/E1/ISDN
Long-Haul
Mode
CRC Check
(Cyclic
Redundancy
Check)
Frame Format
Technical Configuration (T1/E1)
T1 Parameter Definitions
Values
T1
Y/N
Y/N
F4, D4, ESF,
SLC96
155
Description
North American standard.
In Long-Haul Mode, the
MultiVOIP
automatically
recovers received signals as low
as –36 dB. The maximum
reachable length with 22 AWG
cable is 2000 meters. When
Long-Haul Mode is disabled,
signals as low as –10 dB can be
received.
Default: disabled.
When enabled, allows
generation and checking of
CRC bits. If not enabled, all
check bits in the transmit
direction are set. Only applies
to ESF frame format.
Default: enabled.
Frame Format of MultiVOIP
should match that used by PBX
or telco. ESF and D4 are
commonly used.