DITEK Technical Support
1-888-472-6100 www.diteksurgeprotection.com
DITEK Corporation
ONE DITEK CENTER
1720 Starkey Road
Largo, FL 33771
This Surge Protective Device (SPD) is a high performance device, designed to provide protection
for sensitive electronic loads connected to service panels, fire panels, or where the SPD is
directly connected to the electronic device. Maximum protection will only be achieved if the SPD
is properly installed. Please read and follow the installation instructions carefully.
NOTICE:
This SPD should be installed by a licensed contractor in accordance with the National
and Local Electrical Codes and the following instructions.
APPLICATION
Rack mount surge suppression for shielded Ethernet, PoE and PoE extender circuits with field replaceable
surge modules (DTK-NETMS, DTK-EXTMS).
INSTRUCTIONS
Note: This device is intended to be installed indoors on the equipment rack closest to the point of use.
1. Test circuit prior to install to verify correct operation.
2. Turn off the power to the equiment to be protected.
3. This device can be mounted in a standard 19” equipment rack, or wall mounted using a hinged wall
mount bracket.
4. Connect to equipment ground using the ground lug provided on rear of faceplate. Use a minimum
#10 AWG wire.
Make sure the ground wire is as short as possible.
Ground Resistance Rule:
Max ground resistance is 25 Ohms, 5 Ohms or less is optimum.
This cannot be an assumed value and must be measured to assure proper grounding.
5. Plug the RJ45 tipped cable from the field or supply wiring to the
“IN”
UNPROTECTED
RJ45 jack.
6. Plug a 3’ RJ45 male to RJ45 male patch cable from the
“OUT”
PROTECTED
RJ45 jack to the
equipment to be protected. The 3’ patch cable will give this device time to react.
7. After all connections have been made and no hazards exist, restore power to the equipment.
Surge Module Install/Replacement:
There is no need to remove this protector from the rack, the
surge modules can be installed/replaced while it is mounted.
This product is made up of 12, 16 or 24 individual surge modules.
If 1 or more channels self sacrifice, or go end of life, you can replace that module as follows:
1. Power down the individual circuit before servicing this device.
2. Insert a 3/8“ wide flat blade screwdriver into the top notch of the module’s bezel.
3. Gently turn the screwdriver to the right to loosen the bezel.
4. Insert the screwdriver into the bottom notch and again gently turn the screwdriver to the right until the
module is free of the mating connector located at the rear of the rack mount chassis.
5. Remove module or blank bezel for new install.
6. Insert new surge module into openening aligning the surge module with the integrated card guides.
The orientation should match the revious module.
7. Press the new surge module in place making sure it is seated completely and the bezel is flush with the
rack mount chassis.
8. Connect the RJ45 cables as mentioned in #5 and #6 of the
INSTRUCTIONS
listed above.
9. After all connections have been made and no hazards exist, restore power to the circuit.
Please see the illustrations page for more details.
Doc # INT-100174-001
Part No. 191605 Rev. 1
Drawn By: B. Aycock 4-27-18
Created By: R. Mitchell 4-30-18
INSTALL INSTRUCTIONS
DTK-RM12NETS, DTK-RM16NETS, DTK-RM24NETS
DTK-RM12EXTS, DTK-RM16EXTS, DTK-RM24EXTS
Note:
The grounding detail for field installed network surge protectors is not applicable when a shielded
protector using STP (Shielded Twisted Pair), with properly tipped shielded RJ45 connectors, has been
terminated at a properly mounted and grounded shielded rack mount surge protector. The shield is used
to dissipate the excess overvoltage. For example, DTK-MRJPOES, shielded single channel protector, use
DTK-RM12NETS, DTK-RM16NETS or DTK-RM24NETS shielded rack mount multi-channel protector.
INSTALLATION
