Echelon LonPoint Module - Manual (Page 59)

LonPoint Hardware Guide 4-23
Connecting Wiring
Since a Type 2 Base Plate is designed for use with an LPR Router, the only cabling
that will be connected to the Base Plate is power and the network cables for the two
channels between which the router is connected. Bring the cabling into the electrical
enclosure using suitable conduit fittings, bushings, or wire glands, and be sure to
leave a service loop of 6 inches (15cm) of cable to simplify wiring the Type 2 Back
Plate. Dress the cables using tie wraps or tape to ensure that the cabling is not
compressed or caught when the base plate is screwed into place.
Strip the cable jacket and wire conductors. The base plate screw terminals will
accept 24AWG (0.5mm) to 12AWG (2.2mm) wire, which should be stripped to a
length of 0.32” (8mm). Although not required, it may be useful to use a soldering
iron to tin the stripped lengths of any stranded wires to prevent fraying and
inadvertent contact with adjactent terminals. The screw terminal blocks on the rear
panel of the Type 2 Base Plate are color coded to simplify wiring. The color coding
scheme is shown in table 4.3. The optimum tightening torque for the Type 1 Base
Plate screw terminals is 4 lbs. in. (0.5Nm) maximum. The proper screwdriver tip
width is 0.125” (3mm).
Table 4.3 Type 2 Base Plate Terminal Block Color Coding
Terminal Number Terminal Color Function
1 - 4 Orange Network A
5 Orange Cable shield, if used, internally
connected to terminal 14
6 - 9 Black Power
10 and 12 Black None
Jumpered together internally -
may be used to land extra wires
11 and 13 Black None
Jumpered together internally -
may be used to land extra wires
14 Orange Cable shield, if used, internally
connected to terminal 5
15 - 18 Orange Network B
Two sets of screw terminals are provided for both the power and network wiring
connections. These connections are internally jumpered on the Type 2 Base Plate
PCB to provide continuity of the network and power wiring, even if no LonPoint
Router module is installed. This feature permits the Base Plate wiring to be pre-
installed and the network and power circuits checked for continuity throughout the
installation, before a single LonPoint module is ever installed. This feature also
prevents network and power interruptions as a result of hot-swapping LonPoint
modules during commissioning or servicing operations. Finally, providing two sets of
screw terminals permits incoming and outgoing wiring to be landed at separate
screw terminals without the need to insert more than one wire in any given screw
terminal, which improves wiring reliability.