Table Aj - AT&T System 85 Installation And Test

TABLE AJ . Fiber -Optic Link Power Options
LCIT to LCIT
DISTANCE
FIBER
GRADE
SWITCH 2
FULL/HALF
ATTEN-
UATOR G
,
INITIAL
ACTION
IF UNDER-
DRIVEN
1 RED LED
INITIAL
ACTION
IF OVER-
DRIVEN
2 RED LED
0 - 1000 ft
Switch 2 Switch 2
0 - 0.19 ml L FULL 10 dB to half to half
0 - 0.30 km
power; power
401B
ATTEN B
to D
5 dB
1000 - Switch 2 Switch 2
2800 ft
to full to half
019 - L HALF 5 dB power power;
0.53 ml ATTEN B
0.30 - 401A to
0.85 km 10 dB
2800 - Switch 2 Switch 2
4900 ft to half to half
0.53 - L FULL 5 dB power; power
0.93 ml ATTEN B
0.85 - 401A to
1.49 km 0 dB
4900 -
Switch 2 Switch 2
7200 ft to full to half
0.93 - L HALF 0 dB power
power;
1.36 ml ATTEN B
1.49 - 40IM to
2.20 km 5 dB
7200 - Switch 2 Switch 2
9800 ft to full to half
1.36 - N
HALF 0 dB power
power;
1.86 ml ATTEN B
2.20 -
401M to
2.99 km
5 dB
9800 - Switch 2
13000 ft
to half
1.86 - N FULL
0 dB power
2.46 mi
2.99 -
401M
4.00 km
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