Figure 2-21. Ds1 Connections-1311 To 4310 Feet - AT&T Network Adapter 25 Installation And Maintenance Manual

Figure 2-21.
DS1 Connections—4311 Feet or More
For distances of more than 4311 feet, T1 line repeaters are required in
addition to the CSUs. See the "Install CSU" section of this manual for
installing the CSU.
connection. If the connection is being made between the S25 and a DEFINITY
G1 or G2, System 75, or System 85, refer to the System 85 Installation
Manual (555-1 03-1 04) or the DEFINITY G1 Wiring Guide (555-204-111) or the
System 75 Wiring Guide (555-200-111) for the connecting information.
6 5 5
M A X I M U M
D S X - 1 *
D S 1
6 5 5 F E E T
M A X I M U M
NOTE : USE OF THE OFFICE REPEATER IS OPTIONAL DEPENDING
UPON THE DISTANCE TO THE FIRST T 1 REPEATER
* D S X - 1 R E F E R S
S I G N A L S
Figure 2-22.
DS1 Connections—1311 to 4310 Feet
Figure 2-22 shows a functional diagram of this
C S U
( N O T E )
F E E T
C S U
( N O T E )
T O A P H Y S I C A L C R O S S - C O N N E C T
DS1 connections—4311 Feet or More
P R O T E C T I O N
C I R C U I T
D S 1 L I N E
W I T H
REPEATERS
PROTECTION
C I R C U I T
F O R D S 1
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