TP-DCDC-1248D

(2 customer reviews)

10-36VDC Input, 48V 802.3af PoE Output, 17W

Spec Sheet
User Guide





$49.95

190 in stock

New Stock: 11/14/2024

  • Ships in 1-2 days
  • No Risk Guarantee
  • 2-3 Year Warranty

Features
• Input Voltage 9-36VDC; Output 48VDC
• IEEE 802.3af compliant model
• Dual Inputs for connecting 2 power sources
• Integrated 10/100MB POE Inserter
• High Power up to 17W
• Short Circuit, Over Current and Reverse/Over Voltage Protection
• High Temperature Operation
• Compact size – Maximize Available Space
• I.T.E. Power Supply, UL Listed

Applications
• 12V / 24V Battery Systems
• Wireless Access Points and Client Devices
• IP Phone and Security Camera Systems

• PoE Lighting Applications

The TP-DCDC-1248D Series of DC to DC converters offered by Tycon Power is a low cost and high reliability solution for those requiring 48VDC Power over Ethernet voltage from a 12 or 24V battery system. They have an integrated POE injector to apply the 48VDC to the CAT5/6 Ethernet cable. The output is regulated 48VDC from an input voltage between 9VDC and 36VDC.

They have two common (-) and two (+) for connecting 2 power sources, such as a primary with a backup power source. They have various protections for surge, short circuit and overload. The input and output are isolated. A metal enclosure model is available for industrial applications.

They accept data-in to a shielded RJ45 Jack and provide data-out and POE power on the shielded RJ45 output jack. They work by supplying power on the unused Ethernet pins 4,5(V+) and 7,8(V-). Other IEEE 802.3af compliant model is available for those applications requiring 802.3af handshake. They have various protections for surge, short circuit and overload. The other models have power output up to 24W. The DCDC converters are DIN rail mountable using DIN Rail adaptors pn: DIN-ClipKit-UNI

Technical Information

Ship Weight 0.35 lbs
Ship Dimensions 5 × 3 × 2 in
Input Voltage

Output Voltage/Type

Output Power

Network Speed

Temperature Range

FAQs

Frequently Asked Questions

Where can I get the replacement green connectors for my Tycon PoE Products?

The following shows sources for 4 pole green connectors:

For different pole counts, just follow the manufacturers series.

These connectors from On Shore Technology are compatible.

These connectors from Phoenix Contact are compatible.

Where can I find a PoE chart that shows different types of PoE standards?

https://www.google.com/search?q=poe+type+charts&tbm=isch&ved=2ahUKEwiop_vqm7T_AhUZPN4AHSI3A6kQ2-cCegQIABAA&oq=poe+type+charts&gs_lcp=CgNpbWcQAzoECCMQJ1CKD1i4HGCaJmgAcAB4AIABXYgB-wOSAQE2mAEAoAEBqgELZ3dzLXdpei1pbWfAAQE&sclient=img&ei=aBKCZKjTDZn4-LYPou6MyAo&bih=1317&biw=1992

What is the default IP, Username and Password for the TP-SWxG-2SFP PoE switches?

Default IP: 192.168.2.1 User = admin  Pass = admin

What does the VIN1+, VIN2+, VIN-, and FG mean on my DC to DC converter?

VIN1+ and VIN2+ are used to power the device using 2 different sources.

VIN- is there the negative wire connects to.

FG is your chassis ground.

What do the LEDs on the TP-DCDC-1256GD-VHP indicate?

The TP-DCDC-1256GD-VHP has two separate 802.3at detects the output. One on pins 1,2,3,6 and the other on pins 4,5,7,8. Each detector has an LED associated with it. If the LED is green, it means that the unit had a successful 802.3at detect on the pins and those pins are powered up. Normal operation would be two green LEDs.

What are the Differences Between Passive and Active PoE?

If your device uses 802.3af or 802.3at it is considered to use active POE.  What that means is that the PoE device (Camera/Radio/Telephone/etc.) will check the power coming in and if it doesn’t meet the device requirements it won’t power up.  802.3af/at does a handshake between the sending and receiving POE devices and won’t power up if the receiving device doesn’t provide the proper acknowledgment. 802.3 af/at PoE voltage will always be 44 to 57 volts DC.

-Passive POE usually refers to any device using POE to power that is not 802.3af/at.

-This includes things like cameras and radio antennas that run on 18-48V DC PoE.

-Passive POE does not do a handshake, so it is extremely important to know what POE voltage your device requires before plugging in the CAT5 cable and powering it up.

NOTE: If you connect the wrong voltage, you can easily burn up your device.

NTP Time not Working or updating on my TP-SW4G-2SFP and TP-SW8G-2SFP

Sometimes the date and time of the TP-SW4G-2SFP and TP-SW8G-2SFP are not updating automatically. This is usually caused by the switch not having the proper IP route to connect to the NTP server.

  1. First, you need to program the switch to have an IP route pointing to your gateway.  Go to the web interface; Network Admin; IP Config In this example, my gateway is 192.168.1.254 A default route can use the value 0.0.0.0 for the Network field.
  2. Next, Go to Network Admin; NTP. Select Enabled as the mode. Put in the IP address of the NTP server.
  3. I use  ”http://us.pool.ntp.org/” which has an IP address of 72.5.72.15
  4. Next step is to update the timezone on your switch. Go to Network Admin; Timezone

In this example, my time zone is -6. So I use -360 as my timezone offset. (-6 x 60). Finally, double-check if the system time and date have updated by going to the system information page

If this does not work, check the parameters you’ve set, especially the IP route and NTP server IP address. Make sure you also saved the settings. Power cycling the switch often helps.

MS3xx and MS6xx reset password to factory default

Please follow the instruction as below and reset the password to default.

 

  1. Turn off the unit, disconnect any Ethernet cables attached to the module.
  2. Press and hold S1 switch (on the left of the RJ45) and turn on the unit
  3. After 6 seconds, release S1 and then the unit should revert back to default settings as below:

IP: 192.168.2.1

Gateway: 192.168.2.1

Username: admin

Password: system

  1. Follow the manual’s RJ45 remote control port section settings, change the factors as below and then start to use.

TCP control: server mode protect timeout set to 0

UART control: Baudrate set to 9600

How do I control the PoE ports on my TP-SWxG-2SFP PoE switch using SNMP?

The TP-SW4G-2SFP and TP-SW8G-2SFP are fully manageable PoE switches.

You can turn the PoE ports on and off through SNMP.

Requirement:

Firmware must be V2.1 or newer. You can get the latest firmware at tyconsystems.com on the support page.

MIB files are also available on tyconsystems.com support page. The MIB for PoE port control is titled VTSS-POE-MIB.  The OID for POE Port control is: 1.3.6.1.4.1.6603.1.43.1.2.3.1.1.2.

  1. Port numbers are designated as follows:
  2. Port 1 = 1000001
  3. Port 2 = 1000002
  4. Port 3 = 1000003
  5. Port 4 = 1000004 etc.

The values to use to set the port action are as follows:

  1. disable = 0
  2. 802.3af = 1
  3. 802.3at = 2

So to turn off the power to port 4 Set value of 1.3.6.1.4.1.6603.1.43.1.2.3.1.1.2.1000004 = 0

To turn on power to port 4 with mode = 802.3at Set value of 1.3.6.1.4.1.6603.1.43.1.2.3.1.1.2.1000004 = 2

How do I control the PoE ports on my TP-SW4G-2SFP or TP-SW8G-2SFP managed PoE switch using SSH?

TP-SW4G-2SFP and TP-SW8G-2SFP Managed PoE Switches

PoE Port Control Using SSH:

You can use an SSH capable terminal program such as Putty.

“https://www.putty.org/”

To access the switch through any of the RJ45 ports to be able to control the PoE to the ports.

Start by typing the PoE Switch IP address into the Putty Program. The switch default IP is 192.168.2.1

 

  • The switch will ask for a username and password. Default username is admin and password is system.
  • login as: admin password:  system
  • Once you see the “#” you know that you are logged in successfully. You will then enter commands to control the PoE ports as follows.
  • configure terminal (config)# interface gigabitethernet 1/x

Where “x” = the port number 1-4 or 1-8    ie; “interface gigabitethernet 1/3”  to control port 3 (config-if)# no poe mode  turns off the PoE to the selected port.

Other valid commands are:

  • “poe mode plus”  to set the port to 802.3at mode and
  • “poe mode standard”  to set the port to 802.3af mode.

Note: switching between 802.3af and 802.3at will power cycle the port.

How do I change the Hostname (sysName) of the TP-SW4G-2SFP or TP-SW8G-2SFP?

Connect to the console via the console serial port (115200,8,1,N) or via SSH using software like Putty.

Factory Reset Instructions for TP-MS616, TP-MS308, TP-MS316, TP-MS324
  1. Turn off the unit, disconnect any Ethernet cables attached to the module.
  2. Press and hold S1 switch (on the left of the RJ45) and turn on the unit
  3. After 6 seconds, release S1 and then the unit should revert back to default settings as below:

IP: 192.168.2.1 Gateway: 192.168.2.1 Username: admin  Password: system

  1. Follow the manual’s RJ45 remote control port section settings, change the factors below and then start to use.

TCP control: server mode protect timeout set to 0 UART control: Baud rate set to 9600

DC to DC Converter – Where does the FG wire connect and where does VIN- wire connect, shouldn’t they be wired together?

FG is frame ground or chassis ground or earth ground.

VIN- is connected to V- in your system. In some systems, V- is connected to chassis ground or earth ground. In this case, FG should also be connected directly to chassis ground. It will be connected to V- through the system wiring but this is okay. The suggested wiring is to protect devices against electrical surges like lightning surges.

Are Tycon PoE Switches with SFP fiber ports single, dual or multimode fiber?

All Tycon PoE switches with SFP ports can accept any standard SFP fiber transceiver modules.

The SFP module that you select determines if it is single, dual or multimode fiber.

Some standard SFP modules can be found on Amazon or from your favorite electronics distributor:<

https://www.amazon.com/s?k=sfp+module
Can I use two or more units of the TP-SW4G-2SFP / TP-SW8G-2SFP in the same network?

Yes, you can use two or more units of the TP-SW4G-2SFP / TP-SW8G-2SFP in the same network.

If for any reason, using two or more of those switches causes problems with your SNMP software or your network, please do either of the following.

  • Make sure each switch has a different hostname or SysName from each other.
  • Change the hostname or SysName of the switch via CLI Instructions are found here:

https://tsi.tyconsystems.com/doc/UserManuals/8000087_TP-SW4GBT-2SFP_User_Guide.pdf and

https://tsi.tyconsystems.com/doc/UserManuals/8000110_SW8GAT24-SFP_SW8GATBT24-SFP_Operating_Manual.pdf

  • Change the hostname or SysName of the switch via SNMP
  • SNMP software should allow you to set the values of the SysName variable.

We’ve done it here using the SnmpB program “https://sourceforge.net/projects/snmpb

You will also need the SNMPv2-MIB from here  https://tyconsystems.wpenginepowered.com/firmware/

You load the MIB file and navigate the tree to System. You will see SysName variable. Right-click and select SET then set the value you want.

2 reviews for TP-DCDC-1248D

  1. VDK

    Every product of TYCON works like it should, this one too.

  2. Scott

    Great product!

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