Switchpacks and Jumpers
C-2
7924-A2-GB20-30
October 1997
97-15379-02
P1
1
Switchpack S1
VT100 Terminal
Modular Jack
S1
HDSL Line Jack
P9
P8
P12
P3
Jumper P11
Position
1
2
3
4, 5, 6
7, 8
Settings*
OFF = CP
ON = CO
OFF = AMI line
encoding
ON = B8ZS line
encoding
OFF = Loops A and B
ON = Loop A
000 = 0–133 ft
100 = 133–266 ft
010 = 266–399 ft
110 = 399–533 ft
001 = 533–655 ft
00 = Unframed
01 = D4
11 = ESF
Pins*
1-2
2-3
Settings*
Terminal Mode
Switchpack Mode
* Default in bold
1 2 3
1 2 3
1 2
1 2 3
123
1 2 3
3 2 1
P10
P1
678
ON
12345
Figure C-1.
DSX-1-Compatible Unit Switchpack and Jumper Locations
Pin 1 on jumpers is labeled on the board.
The ON position is labeled on the switchpack.
Positions 4, 5, and 6 on Switchpack S1 work as a group. 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 ft.
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. For example, set 7 OFF and 8 ON for
D4 framing.
