Tyco T1216-C - 19.9 Repeater Panel and Repeater Muster Wiring

EQUIPMENT: T1200-C
PUBLICATION: MARINEC-P-A
ISSUE No. & DATE: 3 02/14
© 2014 Thorn Security Ltd PAGE 55 of 67
Registered Company: Thorn Security Ltd. Registered Office: Dunhams Lane Letchworth Garden City Hertfordshire SG6 1BE
19.9 Repeater Panel and Repeater Muster Wiring
The Repeater RS485 communication and optional Muster Control connections should all be made via a single
multi-core data cable. The 24Vdc supply from the panel can only be made through this cable if there is only one
repeater connected and the cable is short enough to keep the voltage drop to 2Vdc or less (see notes below).
The cable shield needs to be earthed at the panel & all repeaters.
Notes:
One repeater will draw up to 75mA which means that the total resistance of the cable should not exceed 24
Ohms (12 Ohms in each core). The T1200-C Application Guide lists cable types with their nominal DC
resistance.
If more than one repeater is required or the cable resistance is too great, then data cable is unsuitable for
supplying power and a separate suitable 2-core cable must be used.
Use only Plenum rated screened data cable with at least 3 pairs to accommodate repeater communication &
Muster Interface options. 4 pairs will be required if power is also being provided (subject to the limitations
described above).
Figure 27 – Repeater Wiring Diagram
EARTH
STUD
EARTH BAR
Repeater
A B
GND
Top right hand
corner of C1627
motherboard
Data Cable Screen
T1200-
C
fire detection/alarm panel
Power Supply connections not shown.
Repeater
A
B
GND
T1200-C repeater [
max 5 off
]
Top right hand
corner of C1626
motherboard
Figure 28 – Muster Interface Wiring Diagram
Min Sin GND GNDMout Sout
C1665 Muster Interface
in Fire Panel
Min Sin GND GNDMout Sout Min Sin GND GNDMout Sout
Wiring Optional Repeater Muster Interfaces
These three cores should be contained within the Repeater RS 485 communications cable, the cable
screen being connected to the Earth Bar at panel & repeaters. If a separate cable is used then the cable
screen should be connected to the Earth Bars.
C1665 Muster Interface
in Repeater Panel1
C1665 Muster Interface
in Repeater Panel2
2 off 3k9 EOL
Resistors