Specifications

IPmux-4 Installation and Operation Manual Appendix E Parameters and Screens
E1/T1 Configuration Parameters E-19
Table E-12. T1 Physical Layer Configuration Parameters
Key Parameter Possible Values Remarks
1 Channel Status
Disable
Enable
T1 stops gathering statistics data and reports
that the line is operating properly. This does
not affect the data flow.
Default value: Enable
2 Transmit Clock Source
Adaptive
Loopback
Internal
External
Adaptive clock regeneration
The T1 recovered receive clock is used as the
transmit clock.
A local clock source is used.
Clock is derived from Channel 4. When one of
the other ports (1, 2, 3) is configured to
external clock, its transmit clock is taken from
the receive clock of port number 4.
Default value: Adaptive
3 Loopback State
Internal
External
Disable
Data received from the IP network side will be
looped back to the network transmit line. An
unframed all ‘1’ code (AIS) will be transmitted
in the T1 Tx path toward the PBX. Incoming
data from the PBX will be ignored.
Data received from the PBX at the receive T1
line will be looped back to the T1 Tx path
(toward the same PBX), and will continue its
way to the IP network. Data coming from the
IP network will be ignored.
No loopback. Regular operation.
Default value: Disable
4 Channel Type
T1-D4
T1-ESF
Unframed
Determines the framing mode and operation
mode for each configuration.
Framer will be configured to T1-D4 mode.
Operation mode will be set by Signaling mode
field #6 to either Fractional or Fractional with
CAS (see Chapter 1).
Framer will be configured to T1-ESF mode.
Operation mode will be set by signaling mode
field #6 to either Fractional or Fractional with
CAS (see Chapter 1).
Framer will be configured to pass through
mode and the operation mode will be set to
Unframed (see Chapter 1).
Default value: T1-ESF
Note: Changing the Channel Type setting will
delete all connections.
Order from: Cutter Networks
Ph:727-398-5252/Fax:[phone]
www.bestdatasource.com