3Com 3C8S5007 - SuperStack II PathBuilder S500..., User Manual

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Configuring the Ultra-WAN CSU/DSU Interfaces 59
Configuring a
CSU/DSU Interface
for Single Path,
Unstructured Service
This section describes how to configure Ultra-WAN CSU/DSU interface for
single path, unstructured service.
To configure the Ultra-WAN CSU/DSU interface, follow these steps:
1 Set the FrameMode as appropriate for your setup:
SETDefault !<path> -PAth FrameMode = T1_SF | T1_ESF | E1_CRC4 |
E1_NOCRC
where <path> = 4A, 4B, 4C, or 4D.
The FrameMode parameter allows you to specify the frame mode. The
allowable values are the following:
2 Set the connector type as appropriate for your setup using:
SETDefault !<path> -PAth CONNector = E1_Unstructured
|T1_Unstructured
where <path> = 4A, 4B, 4C, or 4D.
3 Set the LineEncoding as appropriate for your setup using:
SETDefault !<path> -PAth LineENCoding = B8ZS | AMI | HDB3
where <path> = 4A, 4B, 4C, or 4D.
The LineENCoding parameter specifies the transmission encoding
method for a serial line. The coding method you specify for the serial line
must match the attached communication device. AMI or B8ZS should be
used for T1 connectors and HDB3 should be used for E1 connectors. NRZ
and NRZI are not valid options on Ultra-WAN interfaces.
4 Set the LineDistance as appropriate for your setup using:
SETDefault !<path> -PAth LineDistance = LH1|LH2|LH3|LH4|SH1|SH2|
SH3|SH4|SH5|SH7
The LineDistance parameter determines the supported long haul (LH) or
short haul (SH) line distance. For T1 lines both long haul and short haul
settings are supported. Further granularity is provided in units of dB for
long haul, and in units of feet for short haul.
T1_SF Superframe format T1.
T1_ESF Extended Superframe format T1.
E1_CRC4 CRC-active E1.
E1_NOCRC E1 without an active CRC.