19
7975-A2-GZ41-00
March 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
Enables or disables Switchpacks S1 and S2.
OFF = Switchpacks Disabled
ON = Switchpacks Enabled
2
Controls Sync Port Type.
OFF = EIA-530, RS-449, or X.21
ON = V.35
3
Select the unit’s timing source. Only valid for LTU configured units.
OFF = Internal clock
ON = External Clock
4, 5, 6, 7, 8
Control Sync Port Data Rate (refer to Table 11, Selectable Payload
Rates)
NOTE:
Switches 4 through 8 are only used when the unit is
configured as an LTU and autorate is disabled.
All OFF = 2048 kbps (1024 kbps for 1 Mbps units)
Use Table 11 to set the Sync Port Payload Rate. Defaults are shown in bold.
NOTE:
Sync port and DSL Line Rates can only be selected from units configured as
LTU (Switchpack S2 #1) with AutoRate disabled (Switchpack S2 # 2).
