DS1 TRANSMISSION AND CABLING
3-5
DS1
DS1
655 FT
MAXIMUM
655 FT
MAXIMUM
DSX-1 PHANTOM POINT
A. DIRECT DISTANCE OF 1310 FT OR LESS
NCTE NCTE
DSX-1 DSX-1
DS1
OFFICE
REPEATER OFFICE
REPEATER
DS1
655 FT
MAXIMUM
655 FT
MAXIMUM
3000 FT OR LESS
B. DISTANCE OF 1311 FT TO 4310 FT
DSX-1
DS1
NCTE T1 LINE
REPEATER
655 FT
MAXIMUM
3000 FT OR LESS
6000 FT OR LESS
DSX-1
DS1
NCTE T1 LINE
REPEATER
655 FT
MAXIMUM 3000 FT OR LESS
C. DISTANCE OF 4311 OR MORE
Figure 3-1. On-Premises Metallic-Cable ConfigurationsOff-Premises CablingWhen DS1s reside in different locations, they are typically connected via a transmission facility (suchas a metallic cable configuration) that is leased from the local exchange company (LEC). Thisfacility usually consists of a line and T1 repeater combination. The customer premises equipmentinterfaces to a DS1 network facility (T1 line) via NCTEs.