18
7984-A2-GZ40-00
February 1999
Switchpack Definitions
Manually change configuration options by moving Switchpack S1 DIP switches
on the card. Table 10 lists Switchpack S1 definitions.
Table 10.
Switchpack S1 Definitions
Switch # . . .
Allows you to . . .
Default in Bold
1
Enable or disable Switchpacks S1 and S2.
OFF = Switchpacks Disabled
ON = Switchpacks Enabled
2
Not used
3
Select the unit’s primary timing source. Only valid for units configured
as LTU.
OFF = Internal Clock
ON = External Clock
4
Control the unit’s T1 line coding.
OFF = B8ZS
ON = AMI
5
Control the unit’s framing format
OFF = ESF
ON = D4
6, 7, 8
Control the unit’s equalization. The three switches form a binary value
used as an index to the table of equalization values. Off denotes 0 and
On denotes 1.
000 = 0–133 feet
001 = 133–266 feet
010 = 266–399 feet
011 = 399–533 feet
100 = 533–655 feet
101 = 0–133 feet
110 = 0–133 feet
111 = 0–133 feet
