Switchpack Definitions For Models 7976 And 7986 - Paradyne Hotwire 7974 Installation Instructions Manual

Switchpack Definitions for Models 7976 and 7986

Table 17 lists Switchpack S1 definitions.
Table 17. Switchpack S1 Definitions (Models 7976 and 7986)
Switch # . . .
1
2
3
4
5
6
7
8
Allows you to . . .
Enable or disable Switchpacks S1 and S2.
OFF = Switchpacks Disabled
ON = Switchpacks Enabled
Control line termination.
OFF = 120 Ohm
ON = 75 Ohm
Select the unit's primary timing source. Only valid for units
configured as LTU.
OFF = Internal Clock
ON = External Clock
Control the unit's E1 line coding.
OFF = HDB3
ON = AMI
Not used
Enable CRC-4 monitoring. Only valid for units configured as LTU.
The NTU will automatically be configured to match the LTU setting.
OFF = Disable CRC-4 monitoring
ON = Enable CRC-4
Control whether Channel 16 contains signaling information or data.
OFF = Channel 16 is used for signaling
ON = Channel 16 is used for data
Not used
30
Default in Bold