Dual Extender Install
Tandem Loop Extender installation is a special application that can increase the range of high-speed internet services an additional mile over a single Loop Extender installation. Field reports indicate that on 24 AWG wire minimum service levels can be achieved as far as 40,000 ft. depending on line conditions.
The first Extender (closest to the CO) and second Extender (closest to the CPE) must comply with the requirements stated in the Loop Extenders user manual. This means:
- The first Extender must be installed at least 344 Ohms(6.6K ft.) from the CO, but no further than 1032 Ohms(19.7K ft.)
- The second Extender must be installed at least 86 Ohms (1.6K ft.) from the CPE, but no further than 929 Ohms(17.7K ft.)
|Method 1: Line Attenuation||Method 2: Distance|
|Downstream Attenuation for L1+L2||L1+L2|
|15.7 ~ 23.0 Kft||11.5 ~ 16.4Kft|
Method 1 (Preferred)
Method 1 gives the best results for this application and should be used whenever possible. Use the following steps to determine the optimal placing of the Loop Extenders.
- Pick a suitable install location for the Express Powered Loop Extender, be sure to follow the figures described above and in the user manual.
- Install and test the first Loop Extender. Remember that you must test sync at least 86 Ohms or roughly 1,600 Ft. from the Extender.
- Pick a desired location for the second Loop Extender, while adhering to the figures described above and in the user manual.
- Measure Attenuation at the second installation location and determine if it falls between 46~70dBm. If it does procede to the next step, if not adjust the installation location accordingly.
- Test sync at the CPE. If you cannot obtain sync, follow our troubleshooting guide located here.
Method 2 is a simpler install method because it does not require field measurements during installation. Use the following steps to determine the optimal placing of the Loop Extenders:
- Pick a suitable installation location for the Express Powered Loop Extender, be sure to adhere to the figures described above and in the user manual.
- Pick a suitable installation location for the Line Powered Loop Extender while also adhering to the installation figures above.
- Add the sum of L1+L2 to determine if the placement range you have chosen for the second Loop Extender is viable, if it is then move to the next step.
- Proceed with field installation of both Extenders. During isntallation verify both units show a solid green LED to indicate power and DSL tones.
- Test sync at the CPE. If you cannot obtain sync, follow our troubleshooting guide location here.