User's Manual

Installing the Link CX 75
68 Disconnect the hand-held voltmeter and BNC test lead from the RSSI port.
69 Finger-tighten the RSSI port cap to seal the Link CX case.
70 Recheck the Link CX LEDs. See Figure 4-1 and Table 4-1 for the locations and descriptions
of the Link CX LEDs.
• When power is properly applied to the Link CX, the PWR/LCL ALARM LED will be on.
• Because the radio link has been established, the RF LINK LED should be on.
• When the DS-3 equipment is or is not transmitting data to the Link CX, the DATA LED
should be on or off, respectively.
• When the Ethernet equipment is transmitting data to the Link CX, the ENET 1 or
ENET 2 LEDs should be on or flashing. When the Ethernet equipment is not transmit-
ting data to the Link CX, the ENET 1 and/or ENET 2 LEDs should be off.
If any of these conditions is not true, troubleshoot the associated equipment and cables.
The Link CX is now mounted and aligned. Continue with Section 4-7 for acceptance tests.
4-6.3 External Antenna on Antenna-Specific Mount
Perform Step 69 through Step 79 on the local radio. Then, repeat these steps for the remote radio. See
Figure 4-14 for the antenna assembly and Pole Mount illustration.
Normally the antenna is aligned by performing azimuth and elevation adjustments and elevation
adjustments as necessary until the peak signal is obtained. It may be helpful to re-peak one adjustment
before finalizing or locking down the other.
Warning: Damage to the antenna can occur if azimuth or elevation adjustments are attempted
without loosening the proper connections as described in the following steps.
71 Remove the BNC cap from the RSSI connector of the remote radio. Attach the hand-held
voltmeter and BNC test lead to the test point.
72 Be sure the mast pipe U-bolts are just loose enough to allow mount rotation while main-
taining complete contact between the mount and the mast pipe.
73 Turn the long stainless steel azimuth screws against the mounting channel. By alternately
turning one azimuth adjustment screw out and the other in, the antenna can be rotated to
the desired azimuth angle. Approximately one turn changes the azimuth direction by 1°.
Avoid adjusting the antenna beyond the ±5° provided by the azimuth clamp as this can
damage the adjusting hardware. Fasten the antenna to the mast pipe and reposition the
clamp if needed.
Note: By securing the mount to the mast pipe and realigning the azimuth clamp with
the antenna boresight, more reliable and precise azimuth adjustments can be
achieved.
After all adjustments are made, tighten both of the azimuth screws against the channel and
secure with the lock nuts provided.
74 Tighten the mast pipe U-bolts while maintaining the peak signal by alternating from left to
right in 1/4 turn intervals.