Switchpack Definitions For Model 7975 - Paradyne 7974 User Manual

Configuring the Unit Using the Internal Switches

Switchpack Definitions for Model 7975

4-6
Table 4-5 lists Switchpack S4 definitions.
Table 4-5. 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 Table 4-6,
Rates)
NOTE:
All OFF = 2048 kbps (1024 kbps for 1 Mbps units)
Use Table 4-6 to set the Sync Port Payload Rate. Defaults are shown in bold.
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).
August 2000
Switches 4 through 8 are only used when the unit is
configured as an LTU and AutoRate is disabled.
Default in Bold
Selectable Payload
7900-A2-GB21-00