BRX Power Injector Installation Guide
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5 Using BRX Power Injector with Popular DSLAM Platforms
The BRX Power Injector is designed to connect seamlessly to the POTS ports of any 3
rd
party DSLAM
platform.
NOTE:
You should be aware that the pin-out of the POTS Amphenol ports of 3
rd
party
DSLAMs may be specific and differ from the standard pin-out.
Please contact Positron Access Solutions directly if you are planning to connect the
BRX Power Injector to a DSLAM model not covered in this document.
NOTE
:
DSLAMs with combo ports will generate the POTS dial tone and the -48Vdc sealing current
internally and do not require a BRX Power Injector.
5.1 Adtran 1148V
The Adtran 1148 family uses a pair of Amphenol connectors to connect to the telephone switch
located at the CO that provides the dial tone on each pair along with the -48Vdc sealing current.
The POTS Splitter integrated in the Adtran 1148-series DSLAM will merge the -48Vdc from the POTS
pairs with the DSL signal from the DSLAM onto the DSL ports.
NOTE
: In order for the -48Vdc current to flow through the DSLAM, it is important to insert a 5-pin Gas
Tube Discharge device (Bourns or similar) in the corresponding socket for each pair requiring BRX
amplification.
Figure 7: Connecting the BRX Power Injector to an Adtran 1148 series DSLAM
