10
Mounting and Connection Instructions - Door module RS485
2.5
Use in conjunction with a potential isolation module RS-485
The door module RS485 is not floating. If potential isolation is required, up to 4 of these modules can be
connected to the RS-485 bus of the ACS-8 with the potential isolaton module RS-485 (Item no. 026595.10), see
connection diagram in chapter 9. The max. distance between each door module and the potential isolation module
RS-485 is 10 m.
Note the additional installation instructions on floating in the ACS-8 Installation instructions.
In practical it use has been shown, that the use of a potential isolaton module RS-485 is only required:
- when the max. specified cable lengths are achieved in the installation object,
- on installation over several parts of a building or building complexes,
- with decentralized power supply using several external power supply units with different
earth potentials distributed on the system.
2.6
Cable lengths/types
!
External readers
20 - 200 m
J-Y(St)Y 4x2x0,8
i
!
Connection tamper reader (TC)
40 m
J-Y(St)Y 2x2x0,8
i
!
Door strike with monitoring contact
40 m
J-Y(St)Y 2x2x0,8
i
!
Door strike key
40 m
J-Y(St)Y 2x0,6
i
or
YV(St)Y 2x0,5
i
!
Interface circuits:
RS-485 3 wire
bis 40 m
J-Y(St)Y
bis 1200 m
Cat-5e or better
!
Power supply
230V AC
NYM-J 3 x 1,5 mm
2
3.
Power supply
3.1
Power supply unit
The Door module RS485 Item no. 026594.10 is delivered with the power supply and charging unit.
The Door module RS485 Item no. 026593.10 is delivered without a power supply. Here you are use decentralized
power supply by one or more external power supply units distributed throughout the system.
If you use a 12V DC power supply, please observe that the output voltage must be free of ground
potential.
3.2
Directives for the power supply
!
A separator (circuit breaker) must be integrated in the installation of the building.
!
Only use approved batteries (directives VDE 0833 - 1) for the power supply. Only use batteries
of the same age and originating from the same production series.
Summary of Contents for 026593.10
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