RadioFrame Networks Inc DH2 User Manual
Method of Procedure
Installation
Installation
66
RFN_3.1 Beta
Figure 18
Environmental Alarm Block
Each of the site alarm contacts are normally closed and connected to the EAS
through a 50-pin Champ cable that connects to a punch block. All alarm contact
pairs must be dry (isolated from ground). Most alarm connections are inputs.
Outputs provide a dry relay closure rated at 0.5 Amps, 30 Vrms or 60 Vdc, 10VA
max.
through a 50-pin Champ cable that connects to a punch block. All alarm contact
pairs must be dry (isolated from ground). Most alarm connections are inputs.
Outputs provide a dry relay closure rated at 0.5 Amps, 30 Vrms or 60 Vdc, 10VA
max.
Alarm wiring for the main rack terminates directly to the EAS rear panel. Connect
the alarm cable as shown in the previous illustration.
the alarm cable as shown in the previous illustration.
Four outputs on the User Alarm/Control and System Alarm/Control connectors
are available for customer-defined applications. Diode suppression of inductive
surges is required if anything but a resistive load is connected to this output.
are available for customer-defined applications. Diode suppression of inductive
surges is required if anything but a resistive load is connected to this output.
Eighteen customer-defined alarm inputs are available on the User Alarm/Control
connector. The alarms are reported to the Operations and Maintenance Center
(OMC) by the respective alarm code. The OMC must be programmed with the
proper alarm name corresponding to each code. All connections on User
Alarm/Control and System Alarm/Control connectors must be defined and
provided to the OMC to insure the effectiveness of monitoring those alarms.
connector. The alarms are reported to the Operations and Maintenance Center
(OMC) by the respective alarm code. The OMC must be programmed with the
proper alarm name corresponding to each code. All connections on User
Alarm/Control and System Alarm/Control connectors must be defined and
provided to the OMC to insure the effectiveness of monitoring those alarms.
Backboard
A wall mounted AC grade fire-rated plywood backboard (1/2” x 4’ x 4’) must be
provided within the site. Reserve a two square foot area on the Telco backboard
for dedicated system use.
provided within the site. Reserve a two square foot area on the Telco backboard
for dedicated system use.
A 117 VAC dual receptacle outlet (3 prong) should be installed on or adjacent to
the Telco backboard. This outlet can be used for accessories, such as modems
and other AC powered devices. It may also be used as a general service outlet.
the Telco backboard. This outlet can be used for accessories, such as modems
and other AC powered devices. It may also be used as a general service outlet.
4.1.2.3 Mandatory
Alarms
RFN recommends site installation of the following alarms:
Alarm Code
Alarm Type
EAS standard alarm connection
219
Intrusion alarm
predefined input, site entry
220
High temperature
predefined input, site high ambient temperature
221
Low temperature
predefined input, site low ambient temperature
222
Smoke detector (120 VAC)
predefined input, site smoke detector
242
Power Plant alarms:
AC power failure
243
low DC voltage
244
high DC voltage
245
breaker alarm failure