INTEGRA Metering AMBUS Port 60 Instructions De Montage page 5

Description
AMBUS ® Port 60 is a signal converter (master) for remote power supply and remote reading of up to 60 slaves. It is resistant to sustained
short circuit. It's very flexible in power supply and has RS-232C, RS-485 and optical interfaces.
LED Indicators
On green
Slave yellow
Max yellow
Short red
RS-232 interface
For data request and utilization of the respond data, a control computer is necessary. Therefore an RS-232 interface is available. The data
lines are linked to screw terminals and to the D-SUB connector in front. Echos are suppressed.
RS232-Terminals
Rx Data line (PC receive line)
Tx Data line (PC transmission line)
⊥ ⊥
Interface reference voltage
Assignment of DB9-Socket
Pin1 DCD
Pin2 RXD
Pin3 TXD
Pin4 DTR
Pin5 GND
Pin6 DSR
Pin7 RTS
Pin8 CTS
Pin9
Optical interface
To relieve the installed control computer, hand-held units are often used to read the M-bus network. Therefore AMBUS
venient optical readout with optical head. Light from external sources has been suppressed to avoid interference. On the optical interface
only transmission speeds of 300...2400 Baud can be guaranteed.
Simultaneous readout from several interfaces (e.g. RS-232C and Opto) can influence each other.
RS-485 interface
It is recommended to use the RS-485 inter-face if there is a great distance between control computer and AMBUS
ware is to be used that switches the direction of transmission. The AMBUS
Port 60 receives data from connected slaves, it becomes a transmitter on the RS-485. The system switches back to receive mode 37ms
after the end of the last data bit. The RS-485 of AMBUS
a 1k5 resistor. To achieve a termination of 120Ω, a 130 Ω resistor would have to be connected to the terminals.
RS485-Terminals
S- Data line – (observe polarity)
S+ Data line + (observe polarity)
®
AMBUS Port 60
Supply voltage is applied
Slave transmitting
Max. current draw
Overcurrent (short-circuit)
not assigned
Data line (PC receive line)
Data line (PC transmission line)
not assigned
Interface reference voltage
High level (Detection of PW60)
Handshake line, linked with Pin8
Handshake line, linked with Pin7
not assigned
® Port 60 is ready to receive data in idle state. If the AMBUS
Port 60 cannot be addressed. The interface in the device is terminated softly with
®
® Port 60 offers con-
® Port 60. A master soft-
®
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