User`s manual
Ground Start Relay
Optional. Purchase Clare
MSS21A12,
14 pin relay
from electronics supply store (such as Newark
Electronics, outlets in most major cities).
Description: The ground start relay is generally
used to obtain a dial tone in private branch
exchange phone systems. It does this by mo-
mentarily grounding one side of the phone line.
Not for use in UL Listed applications.
Mount/Install: Mount the relay on the main circuit
board socket, as shown in Figure 2-8.
Settings/Connections:
The ground start relay is
enabled or disabled by installer programming
Fn#216.
Data:
12V,
mercury relay, 30
mA
current draw.
Wireless Module, Antenna and Remote
-’
Antenna Option
See Appendix A.
CCU Tamper Switches
(Ademco
#19
or
SentroI
3025T-90-1)
Figure 2-8 Ground Start Relay
Figure 2-9 Tamper Switches
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