GS1500-24P PoE for Cisco 7960 SIP
Hello All!
I've just purchased this used switch, and I have issue powering up Cisco 7960 phones. I have 5 of these phones, and so far I was able to power up only 1.
I'm using the B type pinout on Cat5, the blue and brown pair is supplying the power. This 1 working phoneis powering up on each port, the other phones wont boot up. Is it a phone issue??? All 4 of them???
Please advise....thanks for you time!
Attila.
I've just purchased this used switch, and I have issue powering up Cisco 7960 phones. I have 5 of these phones, and so far I was able to power up only 1.
I'm using the B type pinout on Cat5, the blue and brown pair is supplying the power. This 1 working phoneis powering up on each port, the other phones wont boot up. Is it a phone issue??? All 4 of them???
Please advise....thanks for you time!
Attila.
0
Accepted Solution
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Hi @Hun,
Just like gb5102 said, Cisco 7960 is an old model and only supports Cisco's proprietary 'pre-standard' PoE implementation which is not supported on GS1500-24P.
I list some devices below which support Pre-802.3at mode(pre-standard PoE), you may refer to the following links of introduction page:
GS1350-6HP:smart managed switch with 802.3at PoE Plus and 802.3bt PoE++ (Port 1 and 2 support)
GS1900-8HP:smart managed switch with 802.3at PoE Plus
GS1920-8HPv2:smart managed switch with 802.3at PoE Plus
Zyxel Melen
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All Replies
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Hi @Hun,
According to your description, you can power up 1 phone on each port, so POE function looks workable.
I guest your cables which link to 4 nonworking phones may have some issue, could you have a test is that connect these phone to the cable which is link to working phone?
If the phone can work, that means you need to change cable.Zyxel Melen
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Cisco 7960 is *very old* and only supports Cisco's proprietary 'pre-standard' PoE implementation. This phone will not work with a standard 802.3af/at PoE switch such as Zyxel switches.See here for details: https://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-ip-phone-7900-series/97869-poe-requirement-faq.html#qa4
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Hello and thanx for your time..... sorry for replying after long time, but I had some personal problems.
So, why's is this one phone powering up....could be something physically rewired inside this unit?
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Or a slight different sub-release of the phone, maybe PoE compliant..
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OK, I guess that means different firmware or something like that...I guess... :-)
Thanx again!!!0 -
Hi @Hun,
Just like gb5102 said, Cisco 7960 is an old model and only supports Cisco's proprietary 'pre-standard' PoE implementation which is not supported on GS1500-24P.
I list some devices below which support Pre-802.3at mode(pre-standard PoE), you may refer to the following links of introduction page:
GS1350-6HP:smart managed switch with 802.3at PoE Plus and 802.3bt PoE++ (Port 1 and 2 support)
GS1900-8HP:smart managed switch with 802.3at PoE Plus
GS1920-8HPv2:smart managed switch with 802.3at PoE Plus
Zyxel Melen
0
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