February 2003
2-19
1000-A2-GH30-00
2. Parameter Types
Loopback
This parameter indicates the remote DS2 loopback request mode.
LoopbackType
This parameter identifies the type of loopback operated or released
by the CPX-1000. Depending on the transmission system, various
parts of a signal may be looped back.
For example, the LINE loopback may be a full metallic loopback,
while a PAYLOAD loopback may result in a signal that has been
recoded with new and different header and/or CRC information.
Other options are provided for technologies, such as SONET and
testing.
Note
This parameter is reserved for a future release.
Options
Description
INVC1
Invert C1 bit to request loopback
INVC3
Invert C2 bit to request loopback
INVC3
Invert C3 bit to request loopback (default)
INVSTF
Invert stuff bit to request loopback
Note
This parameter is reserved for a future release.
Options
Description
CRS
Cross-connect loopback
DS1FEAC
For support of DS1 loopback using the FEAC
signal
DS3FEAC
For support of DS3 C-bit parity loopback
using the FEAC signal
FACILITY
Facility