DN1315-1007
10
KT-300 Door Controller Installation Manual
Connecting the Master Controller to the Host
PC
Connect flat cable from KT-300 to the PC.
From 0 to 30m (0 to 100 feet):
If the local master controller is located less than 30m
(100 feet) from the host computer, use the on-board RS-
232 RJ12 jack and the supplied flat cable.
NOTE:
If you plan to locate the host PC more than 30m
(100 feet) away from the controller, be sure to
use a VC-485 interface. Otherwise, reduce the
communication speed to a minimum to avoid
data loss.
From 30m to 1.2 km (100 to 4,000 feet)
If the master controller is located more than 60m (200
feet), an optional VC-485 multi-function communication
interface must be used. It can also be used when
running a communication cable in areas unusually high
in electrical noise.
NOTE:
The host computer is used to program the KT-
300 Controllers.
Over Corporate Network (LAN)
If the master controller is used in a LAN-enabled corporate setting, use TCP/IP-to-RS-232
converter (such as the Kantech IP Link or the Lantronix UDS-1100 communication
interface) to connect the controller to the corporate network. This method uses existing
wiring for data exchange between EntraPass and the controllers. The diagram on the left
shows how to connect a DB-9 to RJ-12 flat cable between the master controller and the
converter. Consult
Application Note
DN1506 to learn how to set up the communication
interface.
For remote sites
If the master controller is used in remote areas,
modems must be used to send and receive
access control data over telephone lines. For this
application Kantech supports US Robotics 56K
external Sportster modems at both ends of the
communication line. As shown on the right, a
modem connects to the master controller only
using a DB25 to RJ-12 flat cable. For dial-up
communication settings via software, refer to
your communication settings.
RS-232 WITHOUT VC-485
KT-300
VITAL
RJ12F
RS-485 WITH VC-485
CONVERTER
RS-232/RS-485
VC-485
V+ = 5-14 VDC
An optional VC-485 must be used when the PC is located
more than 60m (200”) from the master controller
P3
EGND
X1-
X1+
+12V
GND
+5V
READER PWR
RS485
C
8
LED BUZ RL1 LED BUZ RL2
OUTDOOR 1
OUTDOOR 2
ORANGE
ORANGE WHITE
BLUE
BLUE WHITE
RED
BLACK
CABLE DESCRIPTION: 1.2 METERS (4”)
AWG#26, 6 WIRES, INCLUDED WITH
VC-485. (MAX LENGTH 60 METERS (200”))
DB25 (740-1012)
OR
DB9 (740-1022)
KT-300
TB1
16V
AC
+12v-
AUX
LK1-
LK2-
+
LOCK 12V
S/N
*NOTE:
CONNECT A 120 OHMS END
OF LINE RESISTOR ON THE
LAST KT-300
KT-300
TB2
ORANGE
ORANGE WHITE
BLUE
BLUE WHITE
EGND
X1-
X1+
+12V
GND
+5V
READER PWR
RS485
WHT
+5V
CABLE DESCRIPTION: UNSHIELDED TWISTED PAIR
DATA CABLE, 24 GAUGE ETHERNET GRADE 3,
2 PAIR, BELDEN #1227A
CBLK-20
MAX 60 M (200’)
DB25F
(740-1011)
DB9F
(740-1021)
EntraPass
Gateway
US Robotics Sportster
External 56k
Part# DU-MODEM-HOS
Host Modem Dipswitch Settings
1, 2, 6 UP
(Optional Host Modem
to receive alarms only)
Phone
Jack
Phone
Jack
EntraPass Dial-Up Setup with KT-300
Phone Line
Phone
Jack
US Robotics Sportster
External 56k
Part# DU-MODEM-RS
Remote Modem Dipswitch Settings
1, 6 UP
Adaptor modem
to KT-300 (DB-25)
Part #740-1035
Flat cable
Part #CAB-15
VITAL
RJ12
CONNECTOR
KT-300 MASTER
