7210 SAS-M, T, R6, R12, Mxp, Sx, S Basic System
Configuration Guide
System Management
Edition: 01 3HE 16132 AAAB TQZZA 467
ds1 sf — Specifies Super Frame (SF), also called D4 framing. This is a common framing
type used on DS1 circuits. SF consists of 12 192-bit frames. The 193rd bit provides
error checking and other functions. ESF supersedes SF.
e1 pcm30crc — Specifies the pulse code modulation (PCM) type. PCM30CRC uses
PCM to separate the signal into 30 user channels with CRC protection.
e1 pcm31crc — Specifies the pulse code modulation (PCM) type. PCM31CRC uses
PCM to separate the signal into 31 user channels with CRC protection.
line-length
Syntax line-length {110, 220, 330, 440, 550, 660}
Context config>system>sync-if-timing>bits1>output
Supported
Platforms
7210 SAS-T, 7210 SAS-Mxp, 7210 SAS-R6 and 7210 SAS-R12
Description This command configures the line-length parameter of the BITS output. This is the distance
in feet between the network element and the office clock (BITS/SSU).
This command is only applicable when the BITS interface-type is DS1.
Default 110
Parameters 110 — Specifies that the distance is from 0 to 110 feet.
220 — Specifies that the distance is from 110 to 220 feet.
330 — Specifies that the distance is from 220 to 330 feet.
440 — Specifies that the distance is from 330 to 440 feet.
550 — Specifies that the distance is from 440 to 550 feet.
660 — Specifies that the distance is from 550 to 660 feet.
ssm-bit
Syntax ssm-bit sa-bit
Context config>system>sync-if-timing>bits1
Note: On the 7210 SAS-T and 7210 SAS-Mxp, BITS2 inherits the values configured for
BITS1.
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