Keri Systems EntraGuard Bronze Quick Start - Manual (Page 7)

EntraGuard Bronze
1530 Old Oakland Road, Suite 100 01911-001 Rev. J
San Jose, CA 95112 USA
(800) 260-5265 (408) 451-2520 FAX (408) 441-0309
Web: http://www.kerisys.com E-mail: [email protected]
Page 7 of 32
Telephone Entry
Quick S
tart Guide
2.2.4 Relays
There are two relays in the unit. Each relay can control a gate and each relay is activated by a
command from either the residence telephone or from the unit itself. Make the wiring connections
from the unit to your gate controller as are appropriate for the panel’s needs. Typically, a two-
conductor, AWG 22 wire is sufficient, however a heavier gauge of wire may be required depending
upon the current demands of the gate controller panel and the wire run length. See Figure 2 on
page 3 for relay pinouts.
2.2.4.1 Isolation Relay for Transient Protection
Some gate controllers generate transients whenever the gate is opened (typically caused by the
starting of the gate motor when opening or closing the gate). These transients can be sent down the
relay lines to the EntraGuard Bronze unit, affecting unit operation. To guard against transients, a
Keri Systems IRP-1 can be installed on the relay line, isolating the unit from the gate controller. See
Figure 5 on page 7 for a wiring diagram.
Figure 5: IRP-1 Wiring Diagram