4
IOM-T-482
2125
© 2021 Watts
tN2
C R
tN2
tN4
Rh W
S1 S2
Com
No Power
tN2
C R
tN2
tN4
Rh W
S1 S2
Com
No Power
L
G
N
Category 5 Cable (< 150 feet, 45 m)
2
tN4 Gateway 482
RS 232
Test
Power: 115 V ±10% 60 Hz 45 mA
Designed and assembled in Canada by
tekmar Control Systems Ltd.
tektra 1017-02
tN4 Bus 0
tN4 Bus 1
tN4 Bus 2
tN4 Bus 3
tN4 Bus 4
Power
Date Cod
e
not testing
testing
testing paused
off
red
red
Caution: Signal wiring must be rated at least 300 V.
H205
1A
Power
L
1
N
5
C1
1
6
tN4
3
C0
0
4
tN4
7
C2
2
8
tN4
9
C3
3
10
tN4
11
C4
4
12
tN4
Do not apply power
RS 232
Tx
Rx
To RS 232 Serial Port
Adapter
1
Reporting Enable
Power-On State
Off
On
Description:
tN4 network of tekmarNet
®
thermostats are connected to a tN4 Gateway 482.
Refer to Thermostat wiring brochures for complete wiring schematic.
There is a limit of 24 devices per tN4 bus. Additional thermostats can be wired to the next available bus up to a
maximum of 96 devices per system.
Electrical Application
482 E1
