Viavi SmartClass OLTS-85 Operating Manual page 119

Limit Length of fiber
x Loss/km
14763-3 Length of fiber
x Loss/km
TIA/11801 Length of fiber
x Loss/km
TX
C1
S
OLTS-85/OLTS-85P
+L
conn2
(0.5dB)
(0.75 dB)
Two jumper cable reference
This reference removes the losses at Connection 1,
Connection 2, and Connection 4 from the measurement.
C2
TX
C1
S
Fig. 37 Two jumper reference - unidirectional
C2
RX
C4
P
Fig. 38 Two jumper reference - bidirectional (switching source and
powermeter mode)
C1 Connection 1
C4 Connection 4
C2 Connection 2
15 A
PPENDIX
L
OOPBACK AND
+L +L
conn3 conn4
0.75 dB 0.75 dB
0.75 dB 0.75 dB
RX
C4
P
RX
C1
P
- R M
EFERENCING ETHODS
R R
EMOTE EFERENCING
+L +L
splice5 conn6
0.3 dB (0.5dB)
0.3 dB (0.75 dB)
C2
TX
C4
S
119