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Switchpacks and Jumpers
V.35/V.11-Compatible Units
DSL Line Jack
C-4
VT100 Terminal
Modular Jack
S4
V.35 / V.11
V.35/V.11-Compatible Unit Switchpack and Jumper Locations
Jumpers P6 – P21 must be set in the same position at all times. For V.35
signaling, each jumper must be placed on Pins 1 and 2. For V.11 signaling,
each jumper must be placed on Pins 2 and 3.
See
Table C-2
for switch positions to use for each supported payload rate.
September 1997
Switchpack S4
Position
Settings*
1
OFF = CP
ON = CO
2
For CO units:
For CP units: unused, leave OFF
3, 4, 5, 6, 7
Payload Rate (see table)
8
OFF = Terminal Mode
ON = Switchpack Mode
Jumpers P6 to P21
Pins*
Settings*
1-2
V.35 signaling
2-3
V.11 signaling
* Default in bold
OFF = Internal timing
ON = External timing
97-15525
7915-A2-GB20-20
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