Videx 4000 Series - Page 28

66250754-EN - V1.0 - 18/02/19
- 28 -
4000 Series GSM Audio Intercom - Technical Manual
4000 Series GSM Audio Intercom with Proximity
Art.4810
Art.4903
To Antenna
RS485 bus
termination
jumper in
OFF position
UNIT ID.1
RS485 bus
termination
jumper in
ON position
Art.4903
UNIT ID.8
OFFON
RS485 BUS TERMINATION
MOV
NO1 NC1
NO2 NC2
RS485 bus
termination
jumper in
OFF position
Art.4903
UNIT ID.2
OFFON
RS485 BUS TERMINATION
MOV
NO1 NC1
NO2 NC2
RS485 bus
termination
jumper in
OFF position
Art.4903
UNIT ID.7
OFFON
RS485 BUS TERMINATION
MOV
NO1 NC1
NO2 NC2
RS485 bus
termination
jumper in
ON position
Art.4903
UNIT ID.8
OFFON
RS485 BUS TERMINATION
MOV
NO1 NC1
NO2 NC2
485 / 232
RS-485
USB-PC
A B GND
RS-232
Art. 481
USB-Serial Converter
Open
Close
BUS
Termination
RS485 bus
termination
jumper in
CLOSED position
switch to RS485 position
USB cable
Volt Free Contacts RLY2
Volt Free Contacts RLY1
Volt Free Contacts RLY2
Volt Free Contacts RLY1
RS485 bus wires and
common GND wire.
Networked Art.4903 keypads:
UNIT ID’s 3, 4, 5 and 6
Volt Free Contacts RLY2
Volt Free Contacts RLY1
Volt Free Contacts RLY2
Volt Free Contacts RLY1
NOTES: Connecting to a PC using the Art.481 is optional and only required if
permanently connecting to a PC and can be used as an alternative means of
PC programming to using the USB connection. Remember the GSM PRO
module can be connected directly to the PC using the USB connection and
then an RS485 bus connection used to connect the other devices.
Fig. 41
IMPORTANT NOTE: For each additional Art.4903 keypad a 12Vdc power supply (HDR-15-12) will be required.
RS485 Network Connection