POE MODE B ON CISCO IE3300 Series Switch

[narshad36]

Hi ...

I am facing an issue.. I have FHF Industrial Phone that accepts 802.3af (Mode B) and 802.3bt (type 3). I have Cisco IE-3300-8U2X-A with Expansion Module IE-3300-8U2X-A. I have supplied 54VDC as Input to Cisco Switch. 

I used the command "power inline four-pair forced" on the interface where phone is connected. But Phone didn't get powered up. 

is 802.3bt is enabled by default? or we have to enable it? if we have to enable it.. shall I use "hw-module Switch UPOE-Plus" command?

Cisco Switch is having IOS XE 17.06.03.

Regards,

NA

[pieterh]

my suggestion about a cross cable was only for a test
normally between a client and a switch you use a straight cable ( 1:1 connected)
1) did you test with a straight cable ?
2) did you test if the phone powers on with an external power supply ? (it could be a DOA)

Interface gig 1/5
switchport mode access
spanning-tree portfast
power inline four-pair forced
shut
no shut
=> this is not the default configuration
=>use these commands
     default Interface gig 1/5
     Interface gig 1/5
          switchport mode access
          spanning-tree portfast
     end

[narshad36]

Yes! phone gets powered up with external power supply.

we didn't test with Straight cable, we'll do that as well.

[narshad36]

We checked with Cross Cable and Straight Cable .... But no success