MRV Communications TERESCOPE TS800/155 - Manual (Page 50)

M R V C o m m u n i c a t i o n s , I n c . – I n s t a l l a t i o n M a n u a l
40
Fig. 6.8a and 6.8b: Screws for coarse alignment
Transceiver Alignment
General
Point-to-point connections require face-to-face orientation of both
transceiving ends of the link. With wireless optical links, the beam spot should
be positioned symmetrically on the remote receiver, as accurately as possible.
Successful installation of the TereScope depends primarily on precise and
accurate optical alignment. Carefully follow the instructions below!!!
Tools and Equipment
Note
The customer can order patch cables and high-output portable source from
MRV.
The following tools and equipment are required at each link end:
• A communication device (mobile phone or walkie-talkie)
• Optical-power meter, giving readings in milliwatts/microwatts or
dBm. (The Optical power meter is convenient though not
necessary.)
• JITK-L.
Procedure
Turn on the power to the TereScope heads from the power source.
Models TS700/155 ,TS700/100 and TS800/155: Set DIP switch toggles 1, 2
to the “Alignment” position (indicated on the back panel). In TS800 models
set the SD2 DIP switch. In TS700/100 only DIP switch toggle 1.
Model TS700G: Even if the data port is left unconnected, the TereScope
transmits an Idle Signal which can be used to perform alignment.
The transceiver alignment procedure is implemented in two stages:
# Coarse Alignment
# Fine Alignment
Coarse Alignment
1. Make sure that both axes (horizontal ‘G1’ and vertical ‘G2’) can
turn freely (but you should’nt loosen or open the ‘G2’ screws).
Loosen bolts F1 and K at least two turns and G1 aiming axis
loosen slightly. Loosen bolts D and bolts F2 on both sides of the
transceiver.
F1
G1
C
D
F2
G2
K
B (x2)