Model 7975 Switchpack Definitions - Paradyne 7974 User Manual

4. Configuring the Unit Using the Internal Switches

Model 7975 Switchpack Definitions

For Switchpack S4 definitions, refer to
(Model
Table 4-5.
4-6
7975).
Switchpack S4 Definitions (Model 7975)
Switch # . . .
Allows you to . . .
1 Enable or disable Switchpacks S3 and S4.
OFF = Switchpacks Disabled
ON = Switchpacks Enabled
2 Control Sync Port Type.
OFF = EIA-530, RS-449, or X.21
ON = V.35
3 Select the unit's timing source. Valid only for a unit configured as the LTU.
OFF = Internal clock
ON = External Clock
4, 5, 6, 7, 8 Control Sync Port Data Rate. Refer to
Rates (Model
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)
NOTE:
Sync Port and DSL Line Rates can only be selected from a unit configured as
the LTU (Switchpack S3 #1) with AutoRate disabled (Switchpack S3 #2).
December 2001
Table 4-5, Switchpack S4 Definitions
Table 4-6, Selectable Payload
7975), to set the Sync Port Payload Rate.
Default in Bold
7900-A2-GB21-20