4
This IT-230 Interface is fixed and shall be installed in the Panel by Service Persons only. (Service Person is defined
as a person having appropriate technical training and experience necessary to be aware of hazards to which that
person may be exposed in performing a task and of measures to minimize the risks to that person or other persons).
The IT-230 shall be installed and used within an environment that provides the pollution degree max 2, over voltages
category II, in non-hazardous, indoor locations only. This manual shall be used with the Installation Manual of the
panel which is connected to the IT-230. All instructions specified within the panel manual and the C24-HUB manual
must be observed.
All the local rules imposed by local electrical codes shall be observed and respected during installation.
Running the RS-422 Cable
An RS-422 cable must be connected to the
C24-HUB
and cable run to the IT-230 module inside the panel.
NOTE: Maximum cable length for RS-422 cable is 305 m (1,000 ft.)
At the C24-HUB, attach wires for RS-422 connection as follows:
1. Securely fasten the TX+ wire on the terminal block.
2. Securely fasten the TX- wire on the terminal block.
3. Connect a 120
, ¼ W resistor between RX+ and RX- terminals on the C24-HUB.
4. Securely fasten the RX+ wire on the terminal block.
5. Securely fasten the RX- wire on the terminal block.
6. Securely fasten the GND wire on the terminal block. (Optional, DSC recommends connection.)
7. Run the RS-422 Cable from the C24-HUB to the IT-230 mounted inside the Panel.
Hardware Factory Default
The IT-230 can be hardware reset to Factory Default by removing AC power, Battery + terminal, and telephone
line, then installing a jumper between the BLK and DEF pins on the IT-230 Keybus connector (left terminal
block) and restarting the IT-230. (See Figure 2.)
NOTE: Installing the Default (DEF) jumper during normal operation has no effect.
Installing IT-230 with PC1616/1832/1864 Panel
WARNING!
B
EFORE INSTALLING THE IT-230 BOARD WITHIN THE ALARM CONTROLLER ENCLOSURE, DISCON-
NECT ALL POWER AND TELEPHONE LINES FROM THE PANEL.
1. To mount the IT-230 in the panel, perform the following:
a.
Remove the Panel front cover.
b. Remove the 5 white plastic standoffs from the bag provided with the IT-230 kit.
c. Insert the 5 standoffs into the holes on the left side of the Panel as shown in Figure 1 (left view).
d. Orient the IT-230 with the standoffs on left side of Panel and push the IT-230 firmly and evenly onto the
standoffs until it is securely attached to the Panel.
e. Remove the PC-LINK cable from the supplied IT-230 kit and attach one end of the PC-LINK cable to the
PC1616/1832/1864 PC-LINK header. (Red wire on Pin 1 of the Panel).
f. Attach the other end of the PC-LINK cable to the IT-230 PC-LINK connector. (Black wire on Pin 1).
IT-230 INTERFACE PRE INSTALLATION CONFIGURATION
Table 3: RS-422 Connector Pin Assignment
PIN 12345
Signal Name TX + TX - RX + RX - GND
INSTALLING THE IT-230 WITH PANEL
(c) Insert (5) plastic standos (d) Mount IT-230 on standos
DG009590
Figure 1 IT-230 Panel Mounting
(12 pages)
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