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DEFINITY ECS Release 8.2 ATM Installation,
Upgrades, and Administration
555-233-124
Issue 1
April 2000
Installing a DEFINITY ECS ATM-PNC
3-14Synchronization Installation and Testing
3
Use the information in Table 3-3 to determine the maximum cable run lengths for
the configuration.
Table 3-3. Maximum cable lengths
Splitter Used in Cable
Maximum distance from
splitter to ATM switch
400A
T1
100 Ω
North America
(USA and Canada)
H600-383
1
shielded
twisted pair
1. Must have RJ45 connectors on each end.
250 feet
76 meters
401A
T1
100 Ω
North America
(USA and Canada)
H600-383
1
shielded
twisted pair
1310 feet
2
393 meters
402A
E1
120 Ω
See Table 3-4
120-Ω
shielded
twisted pair
1000 feet
2
305 meters
2. The loss allowed in the cable is 6 dB. Typical cables have losses of 0.6 dB/100 ft;
hence, 1000 feet may be considered a typical distance. Distance varies if cables with
different losses are used.
403A
E1
75 Ω
See Table 3-4
75-Ω
coaxial
1000 feet
2
305 meters
Continued on next page