Telular SX5T CDMA User Manual

To satisfy the FCC's Enhanced 911 (E-911) Phase II mandate, SX5T-505C and 535C models
distributed in the USA include an optional GPS antenna with a mounting bracket and suction cups.
The GPS antenna uses satellite technology during emergency calls to automatically report your
location to a 911 dispatcher within 50-100 meters in most cases. For this feature to function, you must
properly mount the GPS antenna on a window as described below in addition to the standard antenna
used for cellular system operation.

Mount the bracket on a window with good line of sight (no obstructions to the sky) using the
suction cups. A small amount of water or petroleum jelly applied to the window surface of the
suction cups will improve their long-term adhesion to the window - see Figure 8 on page 5.

Place the antenna on the topside center of the bracket. The bracket is tilted to aim the 
antenna out the window and toward the sky.

Connect the antenna to the GPS Connector on the side panel of the SX5T - see Figure 11.

GPS Connector

(SX5T-505C/

-535C Only)

Figure 11 – Connectors

Phone Jacks

(RJ11)

Data Port

(Serial or USB)

Installation of the GPS antenna is not required for normal operation of the SX5T. 

Since E-911 service may not be available in all areas, 911 or other emergency calls may not
automatically provide a location.