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Siemens 420 phones on DHCP randomly reboot

Phones on different networks, different Stimis, and poe/or pwr brick randomly reboot-hypath 4000

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2 Answers

Will the PoE Function of S2700/S3700/S5700 PoE Switches Be Affected When a 110 V Power Source Is Used?


When using Huawei power supply units, Huawei fixed switches supports 110 V AC input power. The power consumption of most powered devices (PDs) is 4 W to 5 W; therefore, 250 W and 500 W power supply units can provide sufficient PoE power for PDs.
NOTE:
All fixed PoE switches except the S2700-9TP-PWR-EI, S2750-20TP-PWR-EI-AC, S2750-28TP-PWR-EI-AC, S2751-28TP-PWR-EI-AC, S5700-10P-PWR-LI-AC, S5700-28P-PWR-LI-AC, S5700-28TP-PWR-LI-AC, S5700S-28P-PWR-LI-AC, S5701-28TP-PWR-LI-AC, S5700-52P-PWR-LI-AC, S5700-28X-PWR-LI-AC, and S5700-52X-PWR-LI-AC support double PoE power supply units.

Jan 10, 2017 | Computers & Internet

1 Answer

What about S5700-SI?


S5700-SI series, the S5700-48TP-PWR-SI, S5700-52C-PWR-SI, S5700-24TP-PWR-SI, and S5700-28C-PWR-SI support the PoE function.
Each PoE switch provides two power supply slots, each of which can have a 500 W or 250 W power module installed. A power module can provide 369.6 W or 123.2 W of PoE power to PDs. B3T

Jun 12, 2016 | StarTech.com Computers & Internet

1 Answer

How can I get a second hand Mitel 5215 to accept an IP address?


Your phone needs an IP address in order to communicate. Normally, it asks a "host" for that IP. You need to be connected to the internet for it to connect to the normal host, and your router should be willing to give it that IP address. "DHCP" is how devices ask for and get an IP address.

May 11, 2015 | Mitel 5215 IP Phone

1 Answer

I was wondering if the PWR-2911-POE and PWR-2911-AC can be installed in same 2911 router? Thanks.


No, both of them are power supplies. PWR-2911-AC is the standard power supply but the PWR-2911-POE is a bigger power supply to power up EHWIC or single/double-width line cards. Moreover, there is no physical way to put two same/different power supplies into a 2900 router. But 3800/3900 routers can support dual power supplies. Cisco 2900 Router Price Buy Cisco ISR 2900 Series Routers 3Anetwork com

Apr 03, 2015 | Cisco Computers & Internet

1 Answer

1120e phones keep rebooting


The phone's configuration is likely corrupt and it will need to be reset to factory defaults and reprogrammed.

To stop the reboot cycle, try this:

- Connect the phone to POE (Power Over Ethernet) injector, but do not plug in a data cable into the injector.

- When the message "Cable Unplugged" appears on the screen, connect a data cable to the POE injector.

The phone should return to an online state.

Aug 14, 2013 | Nortel 1120E

2 Answers

How can I activate PoE port on avaya2526T switch?


Try this: http://www.retrevo.com/support/Nortel-2526T-PWR-Switches-manual/id/8084dj990/t/2/

Good luck!

Jun 18, 2011 | Nortel 2526T-PWR Ethernet Routing Switch...

2 Answers

How do I unlock my Siemens gigaset 4000?


To unlock Siemens model mobiles,
you may try this site http://www.theunlockarena.com/siemens/rs13wp8/
It has the best instructions and easy methods for unlocking siemens mobile phones!!!!

Dec 18, 2009 | Siemens Gigaset 4000 Phone

2 Answers

Hello, my cisco ip phone does not start


Confirm if the Phone has power supply. and If it's connected to a POE switch confirm that it connects to the Switch port on the phone.

Oct 14, 2009 | Cisco Computers & Internet

1 Answer

The display on my Snom 320 doesn't work? The phone's lights also don't work, but the buttons and functions do work. Is the phone broken? This is a brand new phone, just out of the box.


Do you have the power brick hooked up to it? If so, try another one if possible as it could be the defective component.

If you're using POE to power it, make sure you have pluggd into a POE port for sure.

If you still have problems after this, then you need to return it for replacement unit.

Sep 11, 2009 | Snom 320 IP Phone

1 Answer

3 vlans, data,1; data 2,;voip,5. Ports carry voice tagged, and data. currently Windows 2000 DHCP server lives on Vlan 1 (AND WORKS). Need to upgrade. When we test the new servers we are unable to make both...


Here's what you need to do:

First, be sure to assign an ip address(in the proper subnet) to each VLAN.

Second, use the ip helper-address command in the context of each VLAN, the address used should be the address of the DHCP server

Third, Add a scope for each additional VLAN on the DHCP server.

The switch will route the DHCP request to the proper server based on the ip helper-address command parameter and based on the ip address of the VLAN that is passed tot he server, a DHCP address in the proper subnet is automatically configured.

Here is a sample:

ProCurve Switch 3500yl-24G-PWR# configure
ProCurve Switch 3500yl-24G-PWR(config)# vlan 33
ProCurve Switch 3500yl-24G-PWR (vlan-33)#ip address 192.168.33.254/24
ProCurve Switch 3500yl-24G-PWR (vlan-33)# ip helper-address 10.1.2.250

Aug 06, 2009 | HP ProCurve 4104gl Networking Switch

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