American Dynamics Complete Kantech KT-400 Wiring Diagram and Installation Guide
Page 26

Connecting the KT-400 Ethernet Four-Door Controller

Connecting the VC-485 or the USB-485 to the RS-485 Bus

Connect the RS-485 cable to (COM1) + 485 - and the RS-485 signal ground to the 12 VDC AUX - (negative)

Controllers are linked together through their RS-485 terminals. The maximum communication loop length is 1.2 km (4,000 ft) using appropriate cabling. The RS-485 communication loop should be wired with Ethernet Category 3 double twisted pair network cable or better. The RS-485 loop can operate from 1200 to 115200 Bauds under normal conditions. Intermittent communication problems or erratic operation may require network speed drops to 9600 or 19200 Bauds. Varying the network speed does not perceptibly change the operation speed of the system.

Note 1: Most installations should be set to 38400 Bauds.

Note 2: Connecting several KT-400 at a single point is not recommended neither are splitters or spider web (star) networks.

Note 3: If the 12 VDC - is already used, the RS-485 signal ground can be connected to the other GND terminals on the KT-400.

The EGND (earth ground) terminal cant be used for signal ground, only use the GND and 12 VDC - (negative) terminals for signal ground.

Note 4: There is no end-of-line resistor to install on the RS-485 COM1 terminals on the last KT-400 controller of a loop.

To RS-232 Port

 

DB9F

(Preferred for Global Edition)

 

DB25F

Max 30 m (100 ft)

GND V+

 

WHITE

GND

BLUE

X-

 

X+

RS232RS- RJ-12

TRANSMIT

RECEIVE

V+

VC-485 RS-232 /RS-485CONVERTER KANTECHSYSTEMINC. Montreal-Canada

PWR

 

 

 

 

485

 

 

 

 

ORANGE VC-485

DN1485-0302

USB

TXPWRRX PoweredfromUSBport

USB-485

X+X-GND RS-485

ORANGE

Max 0.9 m (3 ft)

 

 

 

BLUE

 

 

 

 

To USB Port

 

 

 

WHITE

 

USB-485

 

 

(Preferred for Special Edition and

 

Corporate Edition)

 

 

Up to 1.2 Km (4000 ft )

to the last controller

ORANGE

BLUE

WHITE

Note 5: If you must make up your own RS-232 cable

 

X+

 

with a RJ-12 connector, refer to the following

 

 

 

 

 

diagram for the RJ-12 pin-out.

RS-485

X-

 

 

 

 

 

GND

6 CTS WHITE

 

 

 

 

 

 

5 GND BLACK

 

RS-232 RJ-12

4 RX RED

 

3 TX GREEN

 

 

 

 

 

 

2 GND YELLOW

 

 

 

1 RTS BLUE

 

POWER

GND V+

 

 

 

 

 

 

 

 

 

22

DN1726-0811

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Contents KT-400 Page Table of Contents Installation Checklist Inputs and Outputs Assignments Sheet Pre-Installation Information Technical Support UL 294 Compliance Notice Compliance Specifications FCC & IC ComplianceUL Compliance UL 1076 Compliance NoticeDN1726-0811 Multiple Configuration Options OverviewInputs Trouble and Reporting KT-400 Ethernet Four-Door Controller PCB View KT-400 KT-400 Cabinet Model for North America System Architecture DN1726-0811 Over the internet with a KT-NCC and EntraPass Global Edition Vital LED Heartbeat Patterns Vital LED Heartbeat PatternsTechnical Specifications Type DescriptionExpansion Modules Models Electrical SpecificationsTypical Related DocumentationMiscellaneous Items Dimensions DrawingsPart number Description Models Information DN1762, Figure Installing the KT-400 Ethernet Four-Door Controller Earth Grounding AWG #18 grounding wire to EgndConnect readers and keypads Reader Connection Terminal WarningTamper Protection Install tamper switch on cabinet Relay Controlled OutputsConnecting the KT-400 Ethernet Four-Door Controller BluePowering the KT-400 Ethernet Four-Door Controller Connecting over Corporate Network LANSPI Expansion Port Example of current draw calculationImportant Installation Rules about Expansion Modules KT-MOD-CAB Dimensions Drawing in DWG FormatPCB View of Expansion Modules Ethernet Four WithExpansion Modules Expansion Modules Cabinet for North America Troubleshooting Soft ResetDefault initialization KT-400 Factory Default StepsBi-annual test for battery Annual test for emergency lithium ion batteryOptional Documentation Make sure the KT-400 is in Factory Default Dhcp mode. See on Important The KT-Finder application isVerify your Network Configuration Information Sheet KT-400 Ethernet Four-Door Controller EntraPass Site KT-400 Ethernet Four-Door Controller SiteInstallation Checklist Installing the KT-400 Ethernet Four-Door ControllerInputs and Outputs Assignments Sheet No or NC EOL, DRY or DeolKT-400 Cabinet Inner Door Sticker Diagram North America DN1726-0811
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