Tantalus XR-3100 Installation Manual page 15

3. If you are using the supplied internal antenna, go to Step 4.
– or –
If you are installing the Tantalus-approved external antenna:
a. Remove the internal antenna by unscrewing the TNC plug from the TNC jack.
b. Remove the ½" trade knockout on the bottom left of the device. It is recommended to use
a utility knife, flat head screw driver and hammer to facilitate removal.
c. Run the coaxial cable from the outside of the box and up through the knockout. Connect
the cable to the TNC jack.
d. Ensure that there are several inches of strain relief available in the coax cable. Secure a
tie wrap to the slots in the inner cover.
e. Install the provided split cord grip fitting around the coax cable and insert into the
knockout. This fitting can accommodate multiple coax thickness. If the cable is too loose,
wrap electrical tape around the coax cable to provide a tighter fit in the cord grip fitting.
The device should now look like the one in Figure 5.
f. Install the external antenna, lighting arrestor and mounting hardware according to the
supplied instructions and also taking note of the minimum safe operating distances for the
general public in Table 1 of the RF Exposure section on page ii.
Installing the Tantalus XR-3100
Version 1.03 , Released: 2005-12-09
Figure 5 The XR-3100 with the strain relief correctly installed
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