CIA-675-001 Rev 1.1
9 |
P a g e
Direct: (602) 773-1700
Main: (800) 481-7459
2101 W Peoria Ave, Suite 100
Phoenix, AZ 85029
support@opentechalliance.com
www.opentechalliance.com
Wireless Communications (Optional):
The Gateway can also function without the RS485 wiring. In this
case the XBEE or XBEE Pro 900 MHZ wireless module and an RPSMA antenna must be installed on the
system Gateway and on the remote device to operate wirelessly. If the keypad or relay unit is within
wireless range of the Gateway, the keypad will work in same fashion as with RS485 connections. The range
depends on the wireless module used, the antenna used, the RF background level of the area (rural or
urban) and the number of obstructions between devices. The XBEE basic module range is up to 300ft
unobstructed line of sight rural area. Typical obstructed range of XBEE in urban areas is 100 ft. The XBEE Pro
module range is up to 1 mile w/unobstructed rural line of sight. 500ft obstructed line of sight in urban
areas is common for XBEE Pro. XBEE Pro transmitter modules are recommended. This equipment option has
been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC
Rules.
This option has not been evaluated nor certified as part of UL294 level 2 nor CSA C22.2 No.205
Relay Outputs
: The Gateway has 4 relays. Relay #1 is reserved for a tamper alarm leaving 3 for field
configuration. Each relay has a Normally Closed (NC), a Common and a Normally Open (NO) connection.
Depending on the need, wire to the common and either the NC or NO. On board LEDs are provided to
show if the relay is activated. Typical gate operators require a normally open contact. Some electric door
strikes require a normally closed contact. If door strikes are used it is recommended that they be DC
(typically 12V) so that a shunting diode must then be installed across the solenoid to prevent ground spikes
from disrupting the keypad communication.
Item
Rating
Contact Type
Single Ag-Alloy (Cd Free)
Rated Load
5A (NO) / 3A (NC) @ 30VDC
Max Switching Voltage
30VDC
Max Switching Current
5A (NO) / 3A (NC)
Figure 5
–
Relay Ratings
Tamper Alarm
: Relay #1 on the Gateway is the tamper relay. This relay is asserted whenever any device in
the system detects a tamper condition, and this relay will latch until cleared by clicking the following button
from the local control screen (pg_control.htm).
Figure 6
–
Tamper Alarm Reset
