Fujitsu SRS-2100 manual Two Unit Installations, Bridging at the NT1 Distance

Appendix B				( SRS -2100 Installation
The maximum distance between				Two Unit Installations
the NT1 and the ISDN Terminal				Bridging at the NT1 – Distance
Equipment is 3000 feet in a single
				Between NT1 and Units is Greater
unit installation. The TR switch
				Than 250 ft.
on the Terminal Equipment
should be ON. The TR switches				The overall maximum length of the
on the NT1 should be set at On at				cable is 1600 ft. The TR switches
100 Ohms. NT1 timing should be				on both Terminal Equipment
set to ADAPTIVE (or PTP).				Units should be ON. The TR
NT1 (TR = 100 Ohms)				switched on the NT1 should be
				set to OFF. NT1 timing switches
		Terminal Equipment (TR = O		(if present) should be set to
				FIXED or (PB) when the distance
Two Unit Installations				between the NT1 and the
				Terminal Equipment is 400 ft or
Bridging at the NT1 – Maximum
				less for level 3 wire, or 600 ft for
Distance Between NT1 and Units
				level 5 wire. Longer loops require
is 250 ft.
				ADAPTIVE (or PTP).
The overall maximum length of the				NT1 (TR = OFF)
cable is 1600 ft. The TR switch on						Terminal Equipment (TR = ON)
both Terminal Equipment Units						Terminal Equipment (TR = ON)
should be OFF. The TR switches				Multiple Unit Installations –
on the NT1 should be set to ON
				Bridging at the NT1
at 50 Ohms. NT1 timing switches
(if present) should be set to				The overall maximum length of the
FIXED or (PB).				cable is 1600 ft. The TR switch on
NT1 (TR = 50 Ohms)				the Terminal Equipment farthest
				from the NT1 should be ON. The
	Terminal Equipment (TR = OFF)			TR switches on all other Terminal
	Terminal Equipment (TR = OFF)			Equipment should be OFF. The
				TR switches on the NT1 should
				be set to ON at 100 Ohms. NT1
				timing switches (if present)
				should be set to ADAPTIVE (or
				PTP).
			NT1 (TR = ON 100 Ohms)
					Terminal Equipment (TR = OFF)
					Terminal Equipment (TR = OFF)
					Terminal Equipment (TR = ON)

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