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If a repeater panell is required, the appropriate interface board for the desired communications media must
be installed in both the panel and repeater.
PANEL RS485
RS485 External Connection
Panel
Panel
Panel
Panel
Repeater
Repeater
Repeater
Repeater
Then continue to connect OUT of one Repeater to IN of the next Repeater following the same
connection rules as above. When you reach the last Repeater in the loop make the connections as follows:
The 4 wire external RS485 connections should be made as follows:
LOOP OUT
TX1 A
TX1 B
RX2 A
RX2 B
LOOP OUT
TX1 A
TX1 B
RX2 A
RX2 B
LOOP IN
RX1 A
RX1 B
TX2 A
TX2 B
LOOP IN
RX1 A
RX1 B
TX2 A
TX2 B
The interface inside the Junior panel must have the link jumpers OFF.
The interface inside the Mini-Repeater must have the link jumpers ON.
PANEL =
REPEATER =
OFF
ON
J1 & J2
LINKS
JUNIOR PANEL CONNECTIONS
A
A
A
A
A
A
A
A
B
B
B
B
B
B
B
B
TX 1
TX 1
RX 1
RX 1
RX 2
RX 2
TX 2
TX 2
RS 485 OUT
RS 485 OUT
RS 485 IN
RS 485 IN
A
A
A
A
A
A
A
A
B
B
B
B
B
B
B
B
TX 1
TX 1
RX 1
RX 1
RX 2
RX 2
TX 2
TX 2
RS 485 OUT
RS 485 OUT
RS 485 IN
RS 485 IN
NOTE: Connections shown are for a redundant Loop circuit. If Radial circuit must be used please
contact technical support for information.
NOTE: Make all connections with the power turned off to avoid risk of permanent damage to the
circuit boards.
Manufacturers of Fire Detection Equipment
globalfire.pt
INSTALLATION & COMMISSIONING MANUAL - V1. 03/2015
JUNIOR V4-L
- FIRE ALARM CONTROL PANEL