RadioFrame Networks Inc DH2 User Manual
RadioFrame System
System Description
RFN_3.1 Beta
9
Site Controller CPU Board
The following is a list of CPU Board main features:
•
PPC750 host processor with 1MByte L2 cache
•
MPC8260 communications processor for all serial I/O
•
32 MBytes of FLASH on the PPC bus
•
64 MBytes of SDRAM on the PPC bus
•
16 MBytes SDRAM on the MPC8260 local bus
•
32 KBytes battery backed SRAM with real time clock on the MPC8260 local
bus
bus
•
Four E1/T1 span lines supported by a single quad E1/T1 framer/line driver IC
•
One 10/100BaseT Ethernet port
•
Three 10Base2 Ethernet ports
•
One X.21 port
•
One IEEE 1284 parallel port
•
Two RS232 serial ports
•
Internal or remote GPS Receiver
•
Three time/frequency reference outputs
Environmental Alarm System (EAS)
The EAS provides a central location for site alarm signal processing. The EAS
monitors site environmental conditions, including AC power, smoke alarms,
intrusion alarms, antenna tower lights, etc.
monitors site environmental conditions, including AC power, smoke alarms,
intrusion alarms, antenna tower lights, etc.
The Site Controller and EAS interact in a master/slave relationship. The Site
Controller sends commands to the EAS to determine the status of alarm inputs or
set the state of control outputs. The EAS, in turn, sends alarm status responses
to the Site Controller.
Controller sends commands to the EAS to determine the status of alarm inputs or
set the state of control outputs. The EAS, in turn, sends alarm status responses
to the Site Controller.
The EAS continuously scans the status of the alarm inputs, ensuring that all
alarms are consistently monitored.
alarms are consistently monitored.
Alarm wiring routes directly from the RadioFrame Networks site equipment and
power supply equipment to the EAS. The EAS sends alarm status to the site
controller via the IEEE 1284 parallel connection.
power supply equipment to the EAS. The EAS sends alarm status to the site
controller via the IEEE 1284 parallel connection.
The EAS can monitor up to 48 inputs, each of which must be a contact closure
between the alarm input and its return. Alarm inputs are optically isolated. The
EAS also provides eight relay outputs. Four RJ45 connectors replicate the
physical interfaces to the three RF cabinets and one control cabinet. The
remaining alarm inputs and relay outputs are accessible via two 50-pin DSUB
between the alarm input and its return. Alarm inputs are optically isolated. The
EAS also provides eight relay outputs. Four RJ45 connectors replicate the
physical interfaces to the three RF cabinets and one control cabinet. The
remaining alarm inputs and relay outputs are accessible via two 50-pin DSUB