User's Manual

6 • RF Sensor System I&O Manual 026-1702 Rev 0 10-30-00
2 Installing the RF Gate-
way
Installing the RF Gateway device for a site
controller involves mounting and powering the
device, connecting to the CPC controller’s
RS485 network, and networking the RF Gate-
way with other gateways and receivers on-site.
2.1. Mounting the RF Gate-
way
The RF Gateway is typically mounted in the
same area as the site controller, near the control-
ler’s 16AI, 8RO, and other RS485 network
peripherals. The RF Gateway is designed to fit
into a standard 3" snap track (supplied with the
board).
The RF Gateway should be mounted in an
environment with ambient temperature between
-40°F and 150°F, with a non-condensing relative
humidity between 5% and 95%.
2.2. Powering the RF Gate-
way
The RF Gateway requires 24VAC power
from a Class 2 center-tapped transformer. CPC
supplies several sizes of center-tapped trans-
formers for powering multiple 16AIs, 8ROs, and
other RS485 peripheral boards of the Einstein
and REFLECS systems.
Refer to your controller’s user manual for
information on how to use the center-tapped
transformers listed in Table 2-1 to power multi-
ple RS485 I/O devices. The RF Gateway
requires 4VA of power to operate.
Figure 2-1 shows how to connect the 56VA
and 100VA transformers to the RF Gateway
power connector. Figure 2-2 shows how to con-
nect the 175VA transformer to the RF Gateway.
Three-
Board
Six-Board Ten-
Board
P/N
640-0043 640-0045 640-0048
Power
Rating
56 VA 100 VA 175 VA
Table 2-1-Power Ratings for CPC Transformers
Figure 2-1 - Pinout for the 56VA (640-0043) and 100VA (640-
0045) Transformers
26513001
208 VAC
110 VAC
1
1
2
2
4
4
5
5
FOR 208 VAC POWER SOURCE
FOR 110 VAC POWER SOURCE
10
10
8
8
6
6
AC1
AC1
0V
0V
AC2
AC2
PINOUT
10 8 6
12
45