Tadiran Telecom FlexSet 280, Руководство пользователя

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Coral Terminal Equipment
9-3
Fl
ex
APDL Instal
lati
on
9
Peripheral Card Connections
For information on pin assignments for all I/O cable connections to the Coral
Peripheral Cards, refer to
Chapter 5, External Connections
for the corresponding tables
for the appropriate Coral Peripheral Card (8/16/24)SFT, (8/16/24)SFT Office,
(4/8)S8F Office, (4/8)S16F Office, (8/16)SFTipx, (8/16)SFTsl and 8F8Ssl.
Line Distances
The FlexAPDL is designed to operate over line distances (see below) using internal
power, supplied by the Coral station circuit. Maximum Line Lengths depend on the
gauge wire used to connect the Coral to the FlexAPDL.
A simple rule of thumb for any gauge wire is that the maximum DC resistance of the
loop be
200 Ohms or less .
Maximum line lengths from (8/16/24)SFT, (8/16/24)SFT Office, (4/8)S8F Office,
(4/8)S16F Office, (8/16)SFTipx, (8/16)SFTsl and 8F8Ssl peripheral cards to the
FlexAPDL are listed in
Table 9-2.
Table 9-2 Maximum Line
Lengths for FlexAPDL
Lengths are accurate for a maximum line capacitance of 45nF/km.
GAUGE Maximum line lengths
Meter Feet
22 AWG
1,600 m 5,250 ft
24 AWG
1,100 m 3,600 ft
26 AWG
700 m 2,300 ft