2.1 Description

2N® SmartCom PRO consists of a PCB carrying a power supply and RS 232, RS 485/M–Bus/MDB interfaces. An optional GSM/UMTS module provides continuous Internet connection via GPRS/UMTS. Two relays are available for output contact control. Connectors for optional devices are located in the upper part of 2N® SmartCom PRO. Refer to the figures below for description. There is a gel–lead–acid accumulator connector on the bottom panel. The board also includes a real time clock backup and optional Wireless M-Bus and ZigBee modules. An optional Ethernet connector is mounted on the bottom too. Refer to the figures below for details. The whole 2N® SmartCom PRO system is enclosed in a solid aluminium case. Mount the case on a DIN rail for easier installation. 

2N® SmartCom PRO Description (Bottom View)

  1. RS 232 connector
    • 9-pin D-sub
  2. Power supply and battery terminal board
    • + Uin, - Uin – input supply voltage terminals
    • + Batt, - Batt – gel–lead–acid accumulator terminals
  3. RS 485/M-Bus/RS232 connector (bus type according to the selected version)
    • +,-,GND for RS 485
    • A,B,GND for M-Bus
  4. Ethernet interface (optional)
    • RJ-45

 2N® SmartCom PRO Description (Top View)

 

  1. ZigBee antenna SMA connector (optional)
  2. Wireless M-Bus antenna SMA connector (optional)
  3. Input/output circuit terminal board (from left):
    • RE1 – closing relay contacts

    • RE2 – switching relay contacts

    • Uin+, Uin- –  auxiliary supply voltage contacts, used e.g. for connecting supply voltage to the relays (galvanically connected to the Uin+, Uin– contacts on the 4–pin power supply connector on the bottom side)

    • GND – ground used with the IN1 and IN2 input circuits
    • IN1, IN2 – input circuits (input type according to the jumper settings, refer to Subs. 3.3)
  4. Signalling LEDs
    • from left: ZigBee, WM-Bus, GSM/UMTS or ETH as configured
  5. SIM holder
  6. GSM/UMTS antenna SMA connector