Kantech KT-400 - Manual (Page 27)

DN1726-0811 23
KT-400 Ethernet Four-Door Controller Installation Manual
Connecting the Master Controller to the Host PC via RS-232
Connect RS-232 cable from KT-400 to the PC (maximum length 30 m (100 ft))
If the local master controller is located more than 30 m (100 ft) from the host computer, you must use a VC-485 or
USB-485 interface.
Note 1: The CBLK-10 kit includes 30 m (100 ft) of RS-232 cable with RJ-12 connectors and the 740-1023 (DB9F to RJ-12)
adaptor
Note 2: If you must make up your own RS-232 cable with RJ-12 connectors, refer to the following diagram for the RJ-
12 pin-out.
Connecting over Corporate Network (LAN)
If the master controller is used in a LAN-enabled corporate setting, use the RJ-45 Ethernet port to connect the controller
to the corporate network. This method uses existing wiring for data exchange between EntraPass and the controllers.
Powering the KT-400 Ethernet Four-Door Controller
Install 120 VAC IN / 16 VAC, 75 VA OUT, class 2 transformer
Place battery in cabinet
Power up the KT-400 Ethernet Four-Door Controller
The KT-400 must be powered by a 16 VAC, 75 VA class 2 wire-in or plug-in transformer.
After you have completed all the necessary steps, you can power up the KT-400. Connect AC power and connect the
battery. Once powered, check the VITAL LED status indicator to determine the status of communication and other vital
parameters. Consult Table 1 for VITAL LED behavior identifications.
If the AC supply is removed, the 12 VDC, 7 Ah backup battery will support normal operation for up to 12 hours, if fully
charged. Internal battery verification will cutoff battery power if the battery voltage level falls below 9.5 Volts.
Note: The KT-400 will not start on battery power alone.
Power should only be applied to the unit when all connections are completed and
tested.