Page 11
579-1019 Rev M
4009 IDNAC Repeater Installation Instructions
Connecting Local Class B wired appliances
To connect the Repeater to the EPS or to an appliance using local Class B wiring, complete the following steps:
1. Route the wire from the + and the - outputs to the Repeater IDNAC IN terminal block.
2. Route the wire from the + and the - outputs on the Repeater IDNAC OUT terminal blocks to the corresponding inputs on a peripheral notification
appliance.
3. Route wire from the first appliance to the next one. T tapping is allowed. Repeat this for each appliance.
NOTE:
1. Notification appliances are rated for each individual name plate label. Maintain correct polarity on terminal connections. Do not loop wires under
terminals.
2. Each IDNAC+ and - terminal is rated for two identical wires, enabling up to four Class B T-Tap circuits to be placed directly on each IDNAC terminal
block. See figure below.
Repeater
EPS
SLC
Output
MTAA/
Appliances
IDNAC
MTAA/
Appliances
IDNAC
MTAA/
Appliances
IDNAC
MTAA/
Appliances
IDNAC
MTAA/
Appliances
IDNAC
MTAA/
Appliances
IDNAC
IDNAC OUT
+
+
-
-
I
DNAC IN
+
+
- -
TB1
TB2
IDNAC OUT
+
+
-
-
TB1
Devices
Tap 1
Devices
Tap 2
Devices
Tap 3
Devices
Tap 4
EPS
T-Tapping example:
Devices
100%
Fig 12: Local Class B wiring diagram
Local Class A Loop wiring
To create a local Class A* loop that stems from the Repeater, complete the following steps:
NOTE:
For all Class A wiring, the repeater must be fitted with a Class A Adapter. Consult document 579-1080 for more information.
1. Route the wire from the
B+
and the
B-
outputs on the Class A Adapter terminal block to the appropriate inputs on a peripheral notification
appliance.
2. Route the wire from the first device to the next one. Repeat this for each appliance.
3. When all the appliances have been added to the local Class A loop, close the loop by routing the wire to the
A+
and the
A-
outputs on the Class A
Adapter terminal block.
I
DNAC IN
+
+
- --
+
+
SHLD
-
TB1
TB2
I
DNAC OUT
PORT A
A+
A-
PORT B
B+
B-
Repeater
Class A
Adapter
MTAA/
IDNAC
MTAA/
Local Class A Loop
IDNAC
EPS
SLC
Output
MTAA/
Appliances
IDNAC
+
-
MTAA/
+
-
IDNAC
Appliances
Class A Adapter
Terminal Block
Appliances
Appliances
EPS
100%
Fig 13: Local Class A Loop wiring
