Switchpack And Jumper Locations - Paradyne HOTWIRE 7924 User Manual

Customizing HotWire 7924 Nest Card Termination Units

Switchpack and Jumper Locations

3-2
Use Figure 3-1 to locate HotWire 7924 nest card jumpers and switchpack S1.
Figure 3-1. HotWire 7924 Nest Card Switchpack and Jumper Locations
Pin 1 on jumpers is labeled on the board.
The ON position is labeled on the switchpack.
The jumper on P12 is positioned at the factory on Pins 1–2 (switchpack S1
disabled). To enable switchpack S1, move the jumper on P12 to Pins 2–3.
Positions 4, 5, and 6 work as a trio. Set position 4 to the first digit, position 5
to the second digit, and position 6 to the last digit. For example, set 4 and 5
ON and 6 OFF for 399–533 feet.
Positions 7 and 8 on Switchpack S1 work as a pair. Set position 7 to the first
digit and position 8 to the second digit.
August 1997
Position Setting
1 OFF = CP
ON = CO
2 OFF = AMI line encoding
ON = B8ZS line encoding
3 OFF = Loops A and B
ON = Loop A
4, 5, 6 000 = 0 to 133 feet
100 = 133 to 266 feet
010 = 266 to 399 feet
110 = 399 to 533 feet
001 = 533 to 655 feet
7, 8 00 = Unframed *
01 = D4
11 = ESF
* Some earlier units do not support
unframed operation with V.35-
compatible units. To determine if your
DSX-1-compatible unit supports
unframed operation when connected
to a V.35-compatible standalone unit,
refer Unframed Operation
Appendix A.
7920-A2-GB20-10
Default in Bold
in