Important: Utiliser ce appareil uniquement en
tant que dispositif de contrôle de fonctionnement.
Lorsqu'une défaillance ou un dysfonctionnement
du appareil risque de provoquer des blessures
ou d'endommager l'équipement contrôlé ou un
autre équipement, la conception du système de
contrôle doit intégrer des dispositifs de protection
supplémentaires. Veiller dans ce cas à intégrer de
façon permanente d'autres dispositifs, tels que
des systèmes de supervision ou d'alarme, ou des
dispositifs de sécurité ou de limitation, ayant une
fonction d'avertissement ou de protection en cas de
défaillance ou de dysfonctionnement du appareil.
Important:
• Do not apply power to the device before you
complete and check connections. Short circuits
or improperly connected wires may result in
permanent damage to the equipment.
• Use copper conductors only. Make all wiring in
accordance with local, national, and regional
regulations.
• The device is a low-voltage device. Do not exceed
the device electrical ratings. If you apply a high
voltage to the device, it voids any warranties and
may result in permanent damage.
• Do not remove the terminal block keys.
The terminal block plugs and the terminal
sockets are keyed to fit together in the correct
configuration only.
• Prevent any electrostatic discharge (ESD) to the
device. Static electric discharge can damage the
device and void any warranties.
Follow these guidelines when you wire the device:
• Route the supply power wires and communication
cables at least 50 mm (2 in.) away from the vent slots
in the sides of the device housing.
• Provide slack in the wires and cables. Keep cables
routed neatly around the device to promote good
ventilation, LED visibility, and ease of service.
• Ensure that the building automation network wiring
meets the specifications, rules, and guidelines in
Wiring considerations and guidelines.
• Follow the transformer manufacturer’s instructions
and the project installation drawings. Power supply
wire colors may be different on transformers not
manufactured by Johnson Controls
®
.
• Verify that transformer phasing is uniform across
the devices. Powering network devices with uniform
24 VAC supply power phasing reduces noise,
interference, and ground loop problems.
• Do not connect the device to an earth ground
connection.
Method for tightening terminal blocks
If you over-torque the terminal block screws during
installation of the device, the pole gap in the terminal
block may increase and create a loose connection. This
can affect any of the terminal blocks. Torquing the
terminal screws while the terminal blocks are attached to
the pin can damage the contact and can also cause loose
connections.
To prevent over-torquing and damage to the contacts:
Note: It is best practice to remove the connector
block from the pin headers on the unit before wiring
the terminal blocks. The best way to prevent any
contact damage and loose connections is to avoid
torquing the terminal screws while the plugs are
attached to the pin headers.
1. If available, use a torque screwdriver to tighten the
screw to .25 NM (2.212 in. lbs.). The recommended
bit size for the universal screws on the terminal
blocks is a slotted 1/8 in. (3 mm) bit.
2. If a torque screwdriver is not available, tighten the
terminal screws until the screw is snug on wire, and
then tighten the screw an additional quarter (90°)
to half (180°) turn.
Note: The design of the terminal block screw
helps to prevent over torque. Do not attempt
to tighten by using more down force than
necessary.
Connecting MS/TP devices
Supported field bus integrations include BACnet MS/TP
bus. The device has one field bus connection.
1. Connect the 3-wire bus cable to the removable 4-
terminal plugs labeled FC BUS-1 as shown in Figure
4.
Note: The FC bus terminal blocks on the
device are blue.
Figure 4: FC bus terminal blocks and wiring
connections
JC-RTR11002-0 BACnet Router Installation Guide4
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