EdgeAccess
a. Both ends of each link must use the same type of line coding; set SW1 and SW3 positions 4
and 8. For B8ZS, set the switch to closed (C). For AMI, set the switch to open (O). If you
will control line coding through the software, set the switch to open.
b. Set the line length for each port in your system; see Table 1.
Table 1. T1 Switch Settings for Line Length
Line Length
Application
SW1 or SW3
1 2 3 5 6 7
0-133 ft.
*DSX-1 ABAM Wire AT&T 600B/600C
O O C O O C
133-266 ft.
*DSX-1 ABAM Wire AT&T 600B/600C
C C O C C O
266-399 ft.
*DSX-1 ABAM Wire AT&T 600B/600C
O C O O C O
399-599 ft.
*DSX-1 ABAM Wire AT&T 600B/600C
C O O C O O
533-655 ft.
*DSX-1 ABAM Wire AT&T 600B/600C
O O O O O O
AT&T
CB113
Repeater
O C C O C C
FCC Part 68, Opt A
CSU Network Infc
C O C C O C
ANSI T1.403
CSU Network Infc
O O C O O C
* DSX-1 ABAM: T1 electrical interface specification for 22 gauge unshielded twisted pair.
Figure 5. T1X I/O Card
2-2 3240
S Fiber-Optic Multiplexer
Summary of Contents for 3240S
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