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SRS-1050 Installation ( Appendix A
Page A-8
Two Unit Installations
Bridging at the NT1 –
Maximum Distance Between
NT1 and Units is 250 ft.
The overall maximum length of
the cable is 1600 ft. The TR
switch on both Terminal
Equipment Units should be
OFF. The TR switches on the
NT1 should be set to ON at 50
Ohms. NT1 timing switches (if
present) should be set to
FIXED or (PB).
NT1 (TR = 50 Ohms)
Terminal Equipment (TR = OFF)
Terminal Equipment (TR = OFF)
Two Unit Installations
Bridging at the NT1 –
Distance Between NT1 and
Units is Greater Than 250 ft.
The overall maximum length of
the cable is 1600 ft. The TR
switches on both Terminal
Equipment Units should be
ON. The TR switched on the
NT1 should be set to OFF.
NT1 timing switches (if present)
should be set to FIXED or (PB)
when the distance between the
NT1 and the Terminal
Equipment is 400 ft or less for
level 3 wire, or 600 ft for level 5
wire. Longer loops require
ADAPTIVE (or PTP).
NT1 (TR = OFF)
Terminal Equipment (TR = ON)
Terminal Equipment (TR = ON)