Gateway AC power input: 240V-tolerant?

Good day,

Comcast's field tech just finished replacing our gateway, and porting our primary phone line over to it. With that said, I trust the "backup" battery in the new gateway about as far as I can throw my minivan.

With this in mind: I'd like to power the gateway from our in-house battery plant, which does have a 240V inverter on it (for running stuff that can't be run directly from 48VDC).

So, my question: Is the gateway's AC power input a 'universal' type? As in tolerant of 240VAC? Most such devices have an input range of 85-260VAC.

Oh, and please... No boilerplate responses or timid queries about "why" I want to do this. It's a simple enough question, requiring nothing more than knowledge of the specifications of the gateway's internal AC power supply.

Thank you.

Responses

Accepted Solution

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user_fc3678

New problem solver

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17 Messages

2 months ago

UPDATE: It only took FIVE HOURS, plus two chat sessions and two phone calls to Support (one of which disconnected all on its own) to finally get an answer on this.

Specifically: The AC input range on the business gateway unit is 100-130VAC. It will not support a 240V input (which, personally, I think is ridiculous).

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Comcast_Ray

Official Employee

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31 Messages

2 months ago

Hi there, user_fc3678! Congratulations on the new modem! That is always nice to have! We only offer the 1 type of backup battery that we recommend having in the Comcast Business modem. The user manuals for the Comcast Business modems do not show if it has a 240V inverter. You can check with the modem manufacturer on this, or we can get a visit set up to further discuss this with a technician.

If you would like to set up a visit, please send us a direct message with your full name and complete service address. To do so, click on the direct messaging icon located at the top right of this forums page.

To send a direct chat message to "Comcast Business":
Here's the detailed steps to direct message us:
Click "Sign In" if necessary
Click the "Direct Messaging" icon or go to https://forums.businesshelp.comcast.com/direct-messaging
Click the "New message" (pencil and paper) icon
The "To:" line prompts you to "Type the name of a person". Instead, type "Comcast Business" there
- As you are typing a drop-down list appears. Select "Comcast Business" from that list
- A "Comcast Business" graphic replaces the "To:" line
Type your message in the text area near the bottom of the window
Press Enter to send it"

(edited)

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user_fc3678

New problem solver

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17 Messages

Good day, Ray,

No need to apologize for what was, clearly, a poor design choice by whoever laid out the specs for the gateway. If I were doing it, I'd not only have given it a universal AC input range, but also added an option to run it off a central 48VDC plant!

I'll try direct chat. Thank you.

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2 months ago

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user_fc3678

New problem solver

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17 Messages

OK -- Since direct chat was a near-complete waste of time, the question still stands: Can the gateway's AC power input accept 240VAC input, or is it limited to 120?

I find it impossible to believe no one at Comcast has an answer to such a simple question.

Failing an answer here, who is the contract manufacturer who makes the gateways for Comcast? I suspect I can find out from them, directly.

I expect a response via this forum or Email. I don't have the time or inclination to sit around all day in front of my keyboard.

Thank you.

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2 months ago

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