T-breaker and slave units
Where appropriate refer to as fitted wiring diagrams (if supplied), general notes,
EMC compliance, cable types and loop circuit connections.
78299-01NM
T- breaker
A t-breaker provides a means of making 3-way loop connection to spur
circuit.
78299-02NM
Slave LED unit
A slave LED unit repeats the operation of an LED on an associated fire
sensor. The slave is connected on the loop before the associated fire sensor,
i.e. towards end 1.
78299-03NM
Slave relay unit
A slave relay unit operates with the associated fire sensor connected on a
loop circuit. The slave is connected on the loop before the associated fire
sensor, i.e. towards end 1.
Installing a unit
a)
Identify the package labelled 78299-01NM T-BREAKER,
78299-02NM SLAVE INDICATOR (LED) UNIT or 78299-03NM
SLAVE RELAY UNIT and check the contents:
Components
Quantity
Main assembly
1
Base
1
Fixing screws
2
50mm
CABLE ENTRY
HOLE 30mm DIA
4 OFF
BASE FIXING
POINTS
2 OFF
T-BREAKER
ASSEMBLY
FIXING POINTS
BASE
MAIN ASSEMBLY
L1 OV
L2 OV
LC OV
LINE 1
LINE 2
COMMON
LINE
T-BREAKER
L1 OV
L2 OV
LINE 1
LINE 2
NOT
USED
SLAVE LED UNIT
L1 OV
L2 OV
LINE 1
LINE 2
RELAY
CONTACTS
COM NC NO
SLAVE RELAY UNIT
shfl128
Figure 10-1 T-breaker and slave units
T-breaker and slave units
78910-03NM Issue 2_10/96
10-1
Senator II Installation Manual