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GS108PEv3 PoE Mode A capability ?
Hi, we are contemplating buying some GS108PEv3 switches, or the bigger-port equivalents for our building. We have a number of IP security cameras which are PoE powered. However, many of these are usi...
I just got a feedback from the higher tier of NETGEAR Support. The NETGEAR 802.3af/at PoE switches supports ALT-A mode (Ethernet 1,2,3,6 pair) and will deliver power to PD’s (power devices), that should cover 10/100Mbps devices like the the IP camera you have mentioned. If only using 2 pair cable, the you must make sure that the PD supports ALT-A and must use CAT5 for 10/100M, or CAT5E for 1000M (4pair).
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Regards,DaneA
NETGEAR Community Team
Hi, thanks for the reply. I was aware with this configuration I would only get 100MBPS but I think that's ample for our cameras.
I suppose the next question is, is this switch (GS108PEv3) PoE+ (both 803.11at + af compliant), as it is simply described as PoE.
I'd imagine this configuration I am suggesting, though technically compliant with the standard may be rarely enough used to have had its support dropped.
Any standards compliant 802.3af or 802.3at PSE (endspan [integrated with the PoE switch] or mid-span [PoE injector]) must be able to detect, power and work PDs with alternative A or alternative B versions. The power alternate to be used is defined by 25kOhm resistors on the PD side.
PS. The IEEE standards talk of alternative A and B, not mode A and B.
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