Schneider Electric ION8800 manual Wire the Communications, Infrared Connections COM1

Step 4: Wire the Communications

ION8800 meters are equipped with one standard optical port. Other communications ports are available as options.

The Communications module cover plate (found on the back of the meter) should never be removed unless a communications module is installed in its place.

Infrared Connections (COM1)

Connect an optical probe cable (not included) to communicate between the meter optical port and a PC serial port.

Interface	IEC 1107 optical port
Location	Front of meter
Data Rate	1,200 – 19,200 bps
Isolation	Optical
Duplex	Half

RS-485 Connections (COM2 and COM3)

Ports Available	COM2: optional module or Essailec
	COM3: optional module only
Connectors	Captured-wire (+, –, Common*, Shield)
Wire	Shielded 2 or 3-conductor RS-485 cable
Maximum Cable Length	1219 m (4,000 ft) total for entire bus
Data Rate	300 – 57,600 bps
Maximum Devices (per bus)	32
Isolation	Optical
Duplex	Half

* Use optional Common wire for improved communications performance.

RS-232 Connections (COM3 optional module)

5	1
9	6

DB9 Null Modem

Wiring Diagram

DTE	DTE
(computer)	(meter)

Null modem cable pinout Pin 3 - Transmit Data - Pin 2 Pin 2 - Receive Data - Pin 3 Pin 7 - Request to Send- Pin 8 Pin 8 - Clear to Send- Pin 7 Pin 5 - Signal Ground- Pin 5 Pin 6 - Data Set Ready- Pin 4 Pin 4 - Data Terminal Ready- Pin 6

Specification	Meter Connected to Computer	Meter Connected to External
		Modem
Connector Type	DB9 female end for mating with	male connector on the meter
Wire	Null modem RS-232 cable	Straight-through RS-232 cable
Maximum Cable Length	15.2 m (50 ft)
Data Rate	300 – 115,200 bps
Isolation	Optical
Duplex	Full

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