CONEL CDX 800 [17/44] Connection of port2 connectors m bus

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CONEL CDX 800 [17/44] Connection of port2 connectors m bus
CDX800 DESCRIPTION
2.6.4. Connection of PORT2 connectors (M-BUS)
Panel socket RJ45.
Pin
No.
Signal
mark
Description
Data flow
direction
1 SGND Signal and supply ground
2 SGND Signal and supply ground
3 TxRx- M-BUS B (-) Input/Output
4 TxRx+ M-BUS A (+) Input/Output
5 TxRx- M-BUS B (-) Input/Output
6 TxRx+ M-BUS A (+) Input/Output
7 +12V EXT External power supply +10,8 ÷ +15,6V
8 +12V EXT External power supply +10,8 ÷ +15,6V
ATTENTION! External supply is for converter M-BUS!
The converter must have external power supply because of galvanic separated.
Circuit example of the meter with modem CDX 800 with data length less then 10 m:
17
Pin 1 – SGDN
Pin 2 – SGND
Pin 3 – M-BUS (-)
Pin 4 – M-BUS (+)
Pin 5 – M-BUS (-)
Pin 6 – M-BUS (+)
Pin 7 – +12V EXT
Pin 8 – +12V EXT
Modem CDX 800
SGND
M-BUS (-)
M-BUS (+)
Meter
SGND
M-BUS (-)
M-BUS (+)
Meter
DC
+

Содержание

125
Кешбек Менеджер