The 649A1 splits the incoming signal to provide separate outputs for filtered voice (phone) and ADSL (data), in the form of screw terminals, eliminating any impedances that interfere with communications. The Outdoor POTS Splitter is designed to be mounted on a wall or conduit next to a Network Interface Device (NID).

Please read before calling:

Do you need this filter?

Ifyou have DSL, and you have a security system that connects to the same line, then you need this filter.

Can anyone install this filter?

If your alarm system connects to the phone line through an 'RJ31X' jack (looks like a standard phone jack, only a bit bigger), then you can install this filter. Click, click, and you're done!

If you don't have an RJ31X jack, you'll have to get your security company to install one first.

What if this doesn't fix my problem?

We sell hundreds of these filters a week and the vast majority of buyers are completely satisfied. In the unlikely event that you are not, you can call for an RMA within 30 days, return the filter, and receive a full refund (except shipping.)

Why is our part number slightly different?

Excelsus's part number is too long for our computer! That's all.

Don't forget to test your security system after installation! ZA431PJ31X
ZA431PJ31XA

Provides a single filtered jack for one or two lines of voice device communications.

The Inline Filter connects between the wall jack and voice device (e.g., phone, fax, answering machine, Caller ID) providing a single filtered jack for one or two lines of voice device communications. Suttle DSL filters isolate telephone equipment impedances that interfere with ADSL communications.

Corning Cable Systems Universal ADSL/VDSL Indoor POTS Splitter splits ADSL signals from voice signals on the same subscriber line inside the premises. The universal indoor POTS splitter is fully compliant to VDSL and backwardcompatible with ADSL. This small, robust splitter can be mounted in any interior location - wall, desk or over an existing wall outlet.

The Universal Line Module xDSL Splitter combines the best of outside plant technology with superior DSL performance. The DSL splitter includes the Corning Cable Systems universal circuit that meets ADSL/2/2+ and VDSL requirements while delivering compatibility with all industry standard NIDs. The Corning Cable Systems modular design allows the protector to easily separate from the splitter for mounting inside any NID application. The Universal Line Module xDSL Splitter combines environmentally sealed IDC terminations with an optional, integrated TandAction™ Hybrid Station Protector for maximum, heavy-duty protection, termination and DSL performance in one compact, modular unit. Robust three-element gas tube station protectors are also available.

Same filter that is currently provided in BellSouth DSL Installation Kit. In-line filter for phones or telephone equipment sharing a two-line phone jack. Isolates DSL and home phoneline networking (HPN) signals from voice signal on both lines for peak data performance and voice quality. Effectively filters one or morephone devices (standard or cordless phone, answering machine, dial-up modem, fax machine, etc.) on line 1 and line 2. Use one filter at each phone jack in use in the home or office. Easy to install--just plug the filter cord into any standard phone jack, and plug the phone cord into the filter. Provides one unfiltered jack for DSL/HPN plus one filtered jack for any single or two-line phone device.

The ELK-952 provides exceptional protection against damage from lightning, voltage spikes, and surge damage coming into a phone line. It installs between the RJ31X Phone Jack and the Security Control. The ELK-952 features multi-stage protection and is 5 times faster than MOVs.

The 900A alarm filters are designed to allow residential alarm panels to take control of the main phone line via the RJ31X or RJ38X connector. The 900A blocks DSL service to the alarm panel while providing uninterrupted DSL service to the household telephone wiring. This inline filter is designed to plug into a RJ31X jack, including other similar jacks up to RJ38X.

This filter is a direct replacement for the Z-A431PJ31X filter shown below. Save $5 with this 'generic' equivalent. Note: Web only special! We will not sell this filter over the phone!

Used in place of a surface mounted jack assembly to eliminate AM/Fm and CB radio broadcast interference in phones caused by nearby transmitting antennae.

Same filter that is currently provided in SBC DSL Installation Kit. High-performance in-line DSL filter for phones or telephone equipment sharing a single phone jack. Meets ANSI T1.421 standards for voice quality and data performance with five filters on the line. Isolates DSL and home phoneline networking (HPN) signals from voice signal for peak data performance and voice quality. Effectively filters one or more phone devices(standard or cordless phone, answering machine, dial-up modem, fax machine, etc.). Use one filter at each phone jack in use in the home or office. Easy to install without tools--just plug the filter cord into any standard phone jack, and plug the phone cord into the filter. Provides a filtered jack for any single-line phone device plus a second unfiltered jack for DSL/HPN connection. The short, detachable cord lets user connect the filter to long phone cords in hard-to-reach areas such as behind heavy furniture or desks.