Tyco TST-100 - Environmental requirements; Power and wiring requirements; Grounding requirements

Environmental requirements
■ The TST-100 Touchscreen Terminal board has a -4°F (-20°C) to 140°F (60°C) ambient temperature rating.
■ This TST-100 Touchscreen Terminal board has a 93% (+/-2%) humidity spec rating.
■ This product is for indoor and outdoor use.
Power and wiring requirements
Table 4 on Page 7 shows the power and wiring requirements for the TST-100 Touchscreen Terminal.
Signal
Power
Requirement
To AWG Shield Maximum Length
RS-485 Comm for RM
mode:
Data half-duplex 2 wire
(P6)
iSTAR ACM or IP-
ACM
22/18 Yes 4000ft. (1212m)
RS-485 Comm for Smart
mode:
Data full-duplex 4 wire
(P6)
NOTE: Full duplex has not
been evaluated by
UL.
iSTAR IP-ACM 22/18 Yes 32ft. (10m)
RS-485 Power 12Vdc, 300mA 22/18 Yes Range of 600ft. to 1500ft. (182 to
457 m.) depends on AWG
1
Supervised Inputs (J7 and
J9)
22 Yes 2000 ft. (606m)
Supervised Input
2
Input 22 Yes 2000 ft. (606m)
Outputs (J6 and J8) 11.4-12 Vdc Relay board 22/18 No
1
Check wire lengths to verify that voltage drops are acceptable. Calculations are based on a single RM-4 reader with keypad and LCD (250mA). Using 22AWG, distance =
600ft. (.0165 ohms/ft.). Using 18AWG, distance = 1500ft. (.0065 ohms/ft.).
2
To comply with UL requirements, use shielded, minimum 22 AWG stranded, twisted pair cable for monitor points, DSMs, and REXs. Use Belden 9462 or equivalent.
Table 4:Power and wiring requirements
Grounding requirements
The grounding requirements are as follows:
■ Grounding must follow NEC codes or the applicable local code.
■ Ensure that the reader is properly connected to the ground reference from the wiring on the RS-485 terminal.
■ When disconnecting the wiring, disconnect ground wires last, to provide maximum protection to the equipment and
personnel.
Disconnect all power sources before modifying the wiring.
TST-100 Touchscreen Terminal Installation Guide 7