22
INSTALLATION & COMMISSIONING MANUAL - REVISION 1.0 - 19.FEB.2007
The repeater connections to the RS485 Interface are basically the same as for the Panel. The
the RS485 interface inside the Mini-repeater differs from the Junior's since it is placed vertically. The main
board has a horizontal placement and does not require a loop card.
placement of
MINI-REP MB
J-NET-INT-485
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
RS485 External Connection
The 4 wire external RS485 connections should be made as follows:
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:
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
Repeater RS485
INSTALLATION
NOTE:
Make all connections with the power turned off to avoid risk of permanent damage to the
circuit boards.
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