User's Manual

EX7100 Technical Manual - Installation of Antenna and Equipment
©1999 Exicom Technologies (1996) Ltd 2-10 Issue 2 - February 2001
2.9.1 Control
A DB9 connector provides access to the internal RS-485 bus for future expansion of the
EX7100, and for back-to-back repeater connection. This connector will allow system
control of externally mounted interface cards that are yet to be developed. The Control
bus is not
user accessible.
2.9.2 LMS
A DB9 connector provides access to the internal RS-485 bus to allow daisy chaining of
multiple terminals and connection to an external Link Management device - ELMS. Refer
Appendix B-2.
2.9.3 I/O
A DB25 connector provides high and low priority alarm outputs, and six input/output
contacts for connection of non-latching externally generated site alarms that are sent
across the radio link when triggered.
Important Note: The I/O port is optically isolated. Details of maximum voltages and
currents are given in Appendix A.5. Failure to comply with this criteria may cause damage
to the I/O port.
External Site Alarms
The EX7100 provides the facility to connect up to six non-latching external alarm contacts
which, when triggered, are sent across the radio link. Alarms may include: Site door
alarm, site fire alarm, or generator fuel low alarm.
When an external alarm contact closes, the alarm is sent across the link, via the
engineering channel, and the corresponding output at all intermediate terminals are
triggered. An external alarm appears on the front panel along with standard alarms.
Figure 2.4: External Alarms
2.9.4 RF
Allows connection to an externally mounted Duplexer, if required. (For example, UHF
Duplexer Type 8045)
EX7100
EXICOM
o o
o o
o o
o
o
EX7100EX7100
EXICOM
o o
o o
o o
o
o
EX7100
Repeater
RS-485
EX7100
EXICOM
o o
o o
o o
o
o
EX7100
EX7100
EXICOM
o o
o o
o o
o
o
EX7100
Transmitted
Burglar Alarm
Direction of Alarm
Burglar Alarm
External input 0 goes low
External output 0 goes low
I/O
Receiv ed
Burglar Alarm
External output 0
goes low
I/O
Receiv ed
Burglar Alarm
External output 0
goes low
External output 0
goes low
I/O