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SPECIFICATION
Cable
Conductor
Insulation
Color Code
Twist Lay
Shielding
Jacket
DC Resistance
Capacitance
Characteristic Impedance
Weight
UL Temperature Rating
Voltage
Listing
LEGEND
AWG
— American Wire Gage
CL2P
— Class 2 Plenum Cable
DC
— Direct Current
FEP
— Fluorinated Ethylene Polymer
NEC
— National Electrical Code
O.D.
— Outside Diameter
TC
— Tinned Copper
UL
— Underwriters Laboratories
TO ADDRESS THE UPC OPEN CONTROLLER — The
user must give the UPC Open controller an address that is
unique on the BACnet network. Perform the following proce-
dure to assign an address:
1. If the UPC Open controller is powered, pull the screw ter-
minal connector from the controller's power terminals la-
beled Gnd and HOT. The controller reads the address
each time power is applied to it.
2. Using the rotary switches (see Fig. 25 and 28), set the
controller's address. Set the Tens (10's) switch to the tens
digit of the address, and set the Ones (1's) switch to the
ones digit.
As an example in Fig. 28, if the controller's address is 25,
point the arrow on the Tens (10's) switch to 2 and the arrow on
the Ones (1's) switch to 5.
Fig. 27 — BT485 Terminator Installation
Table 8 — MS/TP Wiring Recommendations
Single twisted pair, low capacitance, CL2P, 22 AWG (7x30), TC foam FEP, plenum rated cable
22 or 24 AWG stranded copper (tin plated)
Foamed FEP 0.015 in. (0.381 mm) wall 0.060 in. (1.524 mm) O.D.
Black/White
2 in. (50.8 mm) lay on pair 6 twists/foot (20 twists/meter) nominal
Aluminum/Mylar shield with 24 AWG TC drain wire
SmokeGard Jacket (SmokeGard PVC) 0.021 in. (0.5334 mm) wall 0.175 in. (4.445 mm) O.D.
Halar Jacket (E-CTFE) 0.010 in. (0.254 mm) wall 0.144 in. (3.6576 mm) O.D.
15.2 Ohms/1000 feet (50 Ohms/km) nominal
12.5 pF/ft (41 pF/meter) nominal conductor to conductor
100 Ohms nominal
12 lb/1000 feet (17.9 kg/km)
SmokeGard 167°F (75°C), Halar -40 to 302°F (-40 to 150°C)
300 Vac, power limited
UL: NEC CL2P, or better
29
RECOMMMENDATION
0
5
0
5
Fig. 28 — Address Rotary Switches
BACNET DEVICE INSTANCE ADDRESS — The UPC
Open controller also has a BACnet Device Instance address.
This Device Instance MUST be unique for the complete BAC-
net system in which the UPC Open controller is installed. The
Device Instance is auto generated by default and is derived by
10's
1's
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