Single Overlay Combiner

Model: SA-2238-0001 technology is the next generation of broadband service delivered over traditional copper networks, widening the spectrum to 212MHz. offers a cost effective roll-out option than fiber as it allows the service provider to re-use valuable existing copper plant. 

As networks speed up and microfilters typically used for xDSL connectivity hit their limitations, carriers need alternative high-bandwidth DPU/POTS support solutions that can be placed at the demarcation point. 

Features unique to the overlay combiner includes secondary surge protection on both lines serving a dual purpose; Firstly, it protects the Combiner against lightning strikes and power crosses, reduces weather related failures and service calls. Secondly, this combiner offers additional protection of the equipment in the house reducing equipment failure due to surges.


  • Indoor POTS Combiner
  • Backwards compatible to VDSL2 and ADLS2+
  • Secondary lightning/surge suppression
  • Compliant to Telcordia and CSA/UL Standards
Single Overlay Combiner


Dimensions (H x W x D)

101 x 54 x 13 mm

3.9 x 2.12 x 0.5 "

Operating Temperature

-40 to +65 °C

-40 to +149 °F





Connects to PSTN service, DPU, and inside wiring using Gel-filled Insulation Displacement Connectors

(22AWG, 24AWG or 26AWG solid conductor type)


1 Subscriber loop per line unit


T1.413, T1.424, ITU-T G.992.1, G.992.3, G.992.5, G.993.1 and G.993.2, CSA/UL

Ordering information

Order number



Single Overlay Combiner