LBON320AC Series 1.2 GHz Customer Premise RFoG ONU
Installation & Operation Manual
TROUBLESHOOTING GUIDELINES CONT'D.
2.
Low or no downstream RF output level.
a.
Verify the optical receive level on the LBON320AC is within range (-6 dBm to +2 dBm, 3.5% OMI level and 1540-1565 nm).
b.
Using a fiber inspection scope, check the optical connector and adapter. Make sure the optical connection is clean.
c.
If the optical input is within range, the OPT IN LED will be illuminated. Verify that the OPT IN LED is illuminated. Use a DC voltage meter to measure the 1
mW/ 1V TP on the ONU. Refer to step #10 and table under the OPTICAL, RF & POWER CONNECTIONS section of this manual.
d.
Check for intermittent connections or pinched fibers.
3.
Low or no upstream transmit level.
a.
Verify the upstream RF input level is within the LBON320AC upstream frequency range (5-42 MHz or 5-85 MHz) and higher than 15 dBmV ± 1 dB.
b.
Use a CW carrier for injection to keep the transmit laser ON.
c.
Inject either from the RF OUT port or using the bi-directional -20 dB TP. Make sure to compensate 20 dB if using the -20 dB TP to inject carrier.
d.
If the upstream RF input is within RF input range, then the OPT OUT LED will illuminate. Verify the OPT OUT LED is ON.
e.
When the OPT OUT LED is ON, connect an optical power meter to the OPT IN/OUT port. Using the optical power meter at the proper upstream wavelength,
verify the optical output of the LBON320AC directly from OPT IN/OUT port is ≥ 2.7 dBm.
f.
Check for intermittent connections.
4.
If the problem is still not solved, replace, and try with another ONU.
5.
If the problem still exists, contact Lindsay Broadband for support. Do not open the LBON320AC as it will void the warranty.
2-2035 Fisher Dr, Peterborough, ON K9J 6X6 Canada
+1.705.742.1350
•
1.800.465.7046
•
support@lindsaybb.com
•
lindsaybb.com
© 2021 Lindsay Broadband Inc. All rights reserved. Printed in Canada. Non-Lindsay Broadband product marks,
service marks, and company names in this document are the property of their respective owners.
All information is subject to change without notice.
Rev. 05/21 (LBB0360)
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Page 4 of 4
ORDERING INFORMATION
Fwd
Total Return
Laser
TX
Optical
TX
Sub-Split
Power
Output Level
Input Power
Type
Power
Connector
Wavelength
Adaptor
LBON320AC
-
xx
xx
-
D
-
x
-
xx
-
xx
-
xx
-
xx
20 = 20 dBmV 25 = 25 dBmV
D = DFB
2 = 2 mW
SA = SC/APC
31 = 1310 nm
45 = 42/54
00 = None
36 = 36 dBmV 30 = 30 dBmV
3 = 3 mW
61 = 1610 nm
68 = 65/85
01 = N. America
xx = CWDM
81 = 85/102
02 = Europe
22 = 204/256
LBON320AC
(front angled view)
