Is anyone using a 3com 3CNJPSE to power a 7960G? I have a couple of 7960Gs and 3CNJPSEs but no combination appears to work. Both phones work fine with a cisco power cube. I get a 47.6V reading across pins 5 and 8 on the patch cable coming from the 3CNJPSE. The network still works through the 3CNJPSE, just no power to the phone until I connect the power cube. Using two straight through wired patch cables, 7960G running sip firmware version 6.3. I've tried different patch cables with the same result. Note this is a G version of the phone which I understand is enable to work with 802.3af devices natively and hence I believe doesn't require a specially wired patch cable. I've looked for a setting to tell the phone to get power via the network without success, is there one? Any ideas? TIA
John Fraizer
2004-Mar-15 07:47 UTC
[Asterisk-Users] OT: cisco 7960G powered by 3com 3CNJPSE
You need to make sure the polarity is right. If I'm not mistaken, I think I saw someone post that the Cisco cubes had the polarity reversed. John stan wrote:> Is anyone using a 3com 3CNJPSE to power a 7960G? > I have a couple of 7960Gs and 3CNJPSEs but no combination appears to > work. Both phones work fine with a cisco power cube. I get a 47.6V > reading across pins 5 and 8 on the patch cable coming from the 3CNJPSE. > The network still works through the 3CNJPSE, just no power to the phone > until I connect the power cube. Using two straight through wired patch > cables, 7960G running sip firmware version 6.3. I've tried different > patch cables with the same result. Note this is a G version of the > phone which I understand is enable to work with 802.3af devices natively > and hence I believe doesn't require a specially wired patch cable. I've > looked for a setting to tell the phone to get power via the network > without success, is there one? Any ideas? > > TIA > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users
Hermann Wecke
2004-Mar-15 07:56 UTC
[Asterisk-Users] OT: cisco 7960G powered by 3com 3CNJPSE
On Mon, 15 Mar 2004, stan wrote:> Is anyone using a 3com 3CNJPSE to power a 7960G? > I have a couple of 7960Gs and 3CNJPSEs but no combination appears to > work. Both phones work fine with a cisco power cube. I get a 47.6V > reading across pins 5 and 8 on the patch cable coming from the 3CNJPSE.I don't believe that the message below will apply to you, but it may worth a reading for non-G users: http://lists.digium.com/pipermail/asterisk-users/2004-February/038223.html
Hermann Wecke
2004-Mar-15 19:43 UTC
[Asterisk-Users] OT: cisco 7960G powered by 3com 3CNJPSE
On Mon, 15 Mar 2004, stan wrote:> Is anyone using a 3com 3CNJPSE to power a 7960G?Forgot to mention that I also have a a 7960G and I tried to use a Compaq PoE (http://www.compaq.ca/english/business/mobile/wireless/poe.asp) and a 3com Network Jack NJ100 (http://www.3com.com/products/en_US/detail.jsp?tab=support&pathtype=support&sku=3CNJ100POE-CRM-20) and none of them worked with my 7960G. When I asked about the "native PoE support", I received these two replies: From: Peter Lei Subject: Re: [FWD] Cisco 7960G (off topic) 7960's can be powered over ethernet... it is the Cisco POE spec though. ===== From: Mike Purdon Subject: Re: [FWD] Cisco 7960G (off topic) Any old -48V DC at 5 Watts will do. Cisco can supply the -48V thru the RJ45 but your switchblade needs to support this. Mike
Dean Collins
2004-Mar-15 19:50 UTC
[Asterisk-Users] OT: cisco 7960G powered by 3com 3CNJPSE
Cisco have the terminals around the other way, this is a well known problem, do a search and you'll find what you need to do. Cheers, Dean -----Original Message----- From: asterisk-users-admin@lists.digium.com [mailto:asterisk-users-admin@lists.digium.com] On Behalf Of Hermann Wecke Sent: Tuesday, 16 March 2004 1:44 PM To: asterisk-users@lists.digium.com Subject: Re: [Asterisk-Users] OT: cisco 7960G powered by 3com 3CNJPSE On Mon, 15 Mar 2004, stan wrote:> Is anyone using a 3com 3CNJPSE to power a 7960G?Forgot to mention that I also have a a 7960G and I tried to use a Compaq PoE (http://www.compaq.ca/english/business/mobile/wireless/poe.asp) and a 3com Network Jack NJ100 (http://www.3com.com/products/en_US/detail.jsp?tab=support&pathtype=supp ort&sku=3CNJ100POE-CRM-20) and none of them worked with my 7960G. When I asked about the "native PoE support", I received these two replies: From: Peter Lei Subject: Re: [FWD] Cisco 7960G (off topic) 7960's can be powered over ethernet... it is the Cisco POE spec though. ===== From: Mike Purdon Subject: Re: [FWD] Cisco 7960G (off topic) Any old -48V DC at 5 Watts will do. Cisco can supply the -48V thru the RJ45 but your switchblade needs to support this. Mike _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users