PTI Security Systems | Wireless RS485 Installation and Troubleshooting Instructions Page 2 of 4
SET-UP
1. The Wireless RS-485 modems are powered using the supplied power transformers.
2.Connection to the RS-485 network is made using the supplied cables.
3.For antenna installation see the supplied instruction manual or the PTI Security Web Quick
Docs Section.
4. Before plugging power into the modem, set all DIP switches to the OFF position (down) as
shown below.
5. If using a Falcon XT, change the Poll Timeout setting in the Setup Falcon XT Advanced
Settings screen to a value of 200. This is important for proper operation.
a. Data Positive = Red
b. Data Negative = Black
c. Shield = Bare
TESTING AND TROUBLESHOOTING
This step should be performed first, prior to connecting to the access control system.
While at the installation site, connect the antenna and power to the modem. Do not connect the
modem to the RS-485 network at this time. Observe the three green RSSI LEDs. These LEDs
indicate the signal strength of the received signal. Since we only have one modem on, all LEDS
should be off. If any are lit there will be interference from a nearby system. If this is the case, a
custom configuration is required in order to change the addressing of the modem. The simplest
solution is to change the hopping channel or VID. See the “Addressing” section of the XTend
Product Manual on the Digi International Web site. Note that if changing the hopping channel or
VID, it must be set the same on both modems.
Repeat this step at both Modem installation sites.
Step 1 - Check for Interfering Systems
Step 2
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Connect the Modem to the Controller RS-485 Network
Connect the modem to the RS-485 network on the controller (Falcon Base Unit, Syscon or XT).
Connect the antenna and power to the modem. The RSSI LEDS should be off; the GREEN Data-In
LED should be flashing indicating that the modem is successfully receiving data from the
controller. If the Data-In LED is not flashing check your connections to the RS-485 network and
verify that the system is using 9600 baud for the Falcon Base Unit or Falcon XT or 2400 Baud if
using the SYSCON. If these systems are set for other baud rates, a custom modem configuration is
required changing the baud rate. Note that on the Falcon Base unit or XT you must also select 2
stop bits. The baud rates for both modems should be set the same.
