Instruction manual

Designing and Planning an M2150 System
30 Access Control Design Guide
Determining the Cable and Wiring Requirements
Table 2-5 shows the recommended cable types and maximum distances. It is important to check that the
planned cable routes will not cause these distances to be exceeded.
Table 2-5: Cable Types and Maximum Distances
Item to be Connected Max. Length of Cable Cable
20mA (MCLP) reader 450ft (150m)
900ft (300m) by doubling power cores
3000ft (1km) powered locally
Belden 9503
Belden 9504
Belden 9502
Wiegand reader
225ft (75m)
450ft (150m) by doubling power cores
Belden 9537
Belden 9539
RS485 reader 3000ft (1km) if locally powered. This is the
maximum communications distance.
Belden 9503
Database unit to RS232-to-20mA
converter
3000ft (1km) Belden 9502
Comms: Database unit to
Database unit
3000ft (1km) Belden 9502
Comms: Database unit to
controller
3000ft (1km) Belden 9502
PC, serial device or modem
(from RS232 port/module)
45ft (15m) Belden 9535
Monitor point 1500ft (500m) 2 cores
24 AWG
Auxiliary output Depends on minimum operating voltage of
device and voltage drop along cable
2 cores
Bypass device Depends on minimum operating voltage of
device and voltage drop along cable
2 cores
Door monitor 1500ft (500m) 2 cores
24 AWG
Exit request 1500ft (500m) 2 cores
24 AWG
Door release Maximum distance and cable choice is
dependent on the specific lock current and its
minimum operating voltage.
2 cores
Elevator node master to slave 3000ft (1km) Belden 9502
Elevator node to fireman's switch 1500ft (500m) Belden 9502
Elevator node to floor buttons
(Enable Select mode)
1500ft (500m)
Elevator node relays to external
equipment
Dependent on maximum allowed loop
resistance. Refer to elevator system manual.
20Vac power 8A rating