can AC adapter with 12V 1.5A work OK with Cisto RVS4000 router?

[SupremeLaw]

Greetings,

We have a Cisco RVS4000 working perfectly.  We also have 2 spares -- one used and one new.

We ended up with a spare AC adapter from another manufacturer:  it's rated at 12V and 1.5A .

The original AC adapter that came with the RVS4000 is rated at 12V 1.0A .

Will that AC adapter from another manufacturer function AOK at 12V and 1.5A ?

I've checked the DC connector, and it appears identical to the original one.

Thanks in advance for your expert advice.

[SupremeLaw]

EDIT:  Cisco RVS4000 router

Ours has been working so superbly, it outlasted the AC adapter that came in the retail box!

(sorry for the typo)

[pieterh]

be sure to also check polarity of the replacement adapter.
commonly this is + at center and - at ring, in many cases this can be found as a symbol on the adapter

[SupremeLaw]

Thanks very much. 

To be sure, replacement AC adapters must be "Positive Polarity"

+ at center

Correct?

[pieterh · Accepted solution]

I do not have an RVS400 or its adapter at hand. so cannot check physically.
but this image displays + at center just above the power adapter input

[SupremeLaw]

Thank you very VERY much!