Nokia 7705 - Page 374

System Management
374
Basic System Configuration Guide
3HE 11010 AAAC TQZZA Edition: 01
line-length
Syntax line-length {110 | 220 | 330 | 440 | 550 | 660}
Context config>system>sync-if-timing>bits>output
Description This command configures the line length, in feet, between the network element and the
central clock (BITS/SSU).
This command is only applicable when the interface-type is DS1.
Default 110
Parameters 110 — specifies a line length from 0 to 110 ft
220 — specifies a line length from 111 to 220 ft
330 — specifies a line length from 221 to 330 ft
440 — specifies a line length from 331 to 440 ft
550 — specifies a line length from 441 to 550 ft
660 — specifies a line length from 551 to 660 ft
source
Syntax source {line-ref | internal-clock}
Context config>system>sync-if-timing>bits>output
Description This command configures the source of the BITS output ports in the 7705 SAR-18.
By default the source is configured as internal-clock, which provides a filtered signal from
the output of the node’s central clock. The central clock output is usually used when no BITS/
SASE device is present. When an external BITS/SASE clock is present, it is often desirable
to provide an unfiltered clock reference to it by configuring line-ref. When the line-ref
parameter is configured, the recovered clock from ref1 or ref2 (based on configuration of the
ref-order and ql-selection commands) is transmitted directly out the BITS output port
without filtering.
Default internal-clock
Parameters line-ref — BITS output timing is selected from one of the input references, without any
filtering
internal-clock — BITS output timing is driven from the node's central clock (filtered)