COM1 PortION 7500 / ION 7600 User’s Guide

 

 

LEDs

 

 

 

LED

Color

Function

 

 

 

Ethernet ACTIVITY

Red1

Flashes as signals are transmitted and received for both Ethernet 10 Base-T and 10 Base-FL ports

Ethernet LINK

Green1

On as long as there is an active connection to either the 10 Base-T or 10 Base-FL ports

Internal Modem DCD

Green

Carrier Detect– Indicates the presence of a carrier signal (active connection to the modem)

 

 

 

Internal Modem RI

Green

Flashes to when the modem detects rings (Ring Indicator)

 

 

 

COM3 TRANSMIT

Red

Flashes as signals are transmitted from the COM3 internal modem

 

 

 

COM3 RECEIVE

Red

Flashes as signals are received on COM3 internal modem

 

 

 

COM2 TRANSMIT

Red

Flashes as signals are transmitted from the COM2 RS-485 loop

 

 

 

COM2 RECEIVE

Red

Flashes as signals are received on COM2 RS-485 loop

 

 

 

COM1 TRANSMIT

Red

Flashes as signals are transmitted from the COM1 RS-232 connection or the COM1 RS-485 loop

 

 

 

COM1 RECEIVE

Red

Flashes as signals are received on COM1 RS-232 connection or the COM1 RS-485 loop

 

 

 

 

 

1 One or both of the Ethernet LED colors may differ from the standard red and green.

COM1 Port

RS-232 Connections

RS-232 connection is made at the male DB9 connector. The meter acts as a DTE device in all RS-232 connections. Specifications are as follows:

Specification

Value

 

 

Baud Rates

300 to 115,200 bps (default is 9,600 bps)

 

 

Duplex

Full

 

 

Supported Protocols

ION, Modbus RTU, DNP 3.0, FACTORY, Iec870-102, GPS: Arbiter,

GPS: TRUE TIME DATUM, EtherGate, ModemGate (default is ION)

 

 

 

Isolation

Optical isolation from all other inputs and outputs (excluding the COM1

RS-485 port); isolation voltage is 750 V peak for 10 seconds @ 60 Hz.

 

 

 

DB9 Null Modem

Wiring Diagram:

 

2

 

2

 

DCE

3

 

3

DTE

4

 

4

(computer)

 

(meter)

5

 

5

 

 

 

 

6

 

6

 

 

7

 

 

 

7

 

 

 

 

 

 

 

8

 

 

 

8

 

 

 

 

 

 

Computer Connections

Specification

Description

 

 

Cable Type

Null modem RS-232 cable

 

 

Cable Ends

DB9 female end for mating with the DB9 male connector on the meter

 

 

Max. Cable Length

50 feet (15.2 m)

 

 

Page 164

Chapter 6 - Hardware Reference

Page 163 Page 165
Page 164
Image 164
Multi-Tech Systems 7600, 7500 manual COM1 Port, LEDs, RS-232 Connections
Page 163 Page 165

7500, 7600 specifications

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