Moxa Technologies IMC-21A IMC-21A Bedienungsanleitung

P/N: 1802000210023

*1802000210023*

IMC-21A

Quick Installation Guide

Moxa Industrial Media Converter

Edition 5.1, July 2018

Technical Support Contact Information

www.moxa.com/support

Moxa Americas:

Toll

-free: 1-888-669-2872

Tel:

1-714-528-6777

Fax:

1-714-528-6778

Moxa China (Shanghai office):

Toll

-free: 800-820-5036

Tel:

+86-21-5258-9955

Fax:

+86-21-5258-5505

Moxa Europe:

Tel:

+49-89-3 70 03 99-0

Fax:

+49-89-3 70 03 99-99

Moxa Asia-Pacific:

Tel:

+886-2-8919-1230

Fax:

+886-2-8919-1231

Moxa India:

Tel:

+91-80-4172-9088

Fax:

+91-80-4132-1045



- 2 -

Overview

The Moxa Industrial Media Converter IMC-21A series consists of entry-

level 10/100BaseT(X) to 100BaseFX media converters that provide a

cost-effective solution, and are specially designed for reliable and stable

operations in harsh industrial environments.

NOTE

Throughout this Hardware Installation Guide, we use IMC as an

abbreviation for Industrial Media Converter:

IMC = Industrial Media Converter

Package Checklist

Moxa’s IMC-21A is shipped with the following items. If any of these

items is missing or damaged, please contact your customer service

representative for assistance.

•IMC-21A media converter

•Quick installation guide (printed)

•Warranty card

Features

•Power inputs: 12 to 48 VDC

•The TP port’s connection speed, Half/Full-duplex mode and

Force/Auto mode are all DIP switch selectable

•The fiber port’s Half/Full-duplex mode is DIP switch selectable

•Supports Link Fault Pass-Through (LFP)

•DIN-rail mountable

•Multimode and single-mode models with SC or ST fiber connectors

are available

•Operating temperature range from -40 to 75°C (T models)

- 3 -

Panel Layout

1. DIP switch

2. Reset button

3. Terminal block for power input and

grounding

4. Power input LED

5. 100BaseFX (SC/ST connector) port

6. FX port's 100 Mbps LED

7. FX port's FDX/COL LED

8. TP port’s 100 Mbps LED

9. TP port's 10 Mbps LED

10.

10/100BaseT(X) port

11.

DIN-rail kit

NOTE:

The IMC-21A series includes the

IMC

-21A-M-SC, IMC-21A-M-ST, and IMC-

21A

-S-SC.

- 4 -

Mounting Dimensions

DIN-Rail Mounting

The aluminum DIN-rail

attachment plate should be fixed

to the back panel of the IMC

-21A

when you take it out of the box. If

you need to reattach the DIN

-rail

attachment plate to the IMC

-21A,

make sure the stiff metal spring is

situated towards the top.

Wiring Requirements

ATTENTION

Safety First!

•

Be sure to disconnect the power cord before installing

and/or wiring your Moxa IMC.

•

Calculate the maximum possible current in each power wire

and common wire. Observe all electrical codes dictating

the

maximum current allowed for each wire size.

•

If the current goes above the allowed maximum

, the wiring

could overheat, causing serious damage to your equipment.

- 5 -

•Use separate paths to route wiring for power and devices. If power

wiring and device wiring paths must cross, make sure the wires are

perpendicular at the intersection point.

•Do not run signal or communications wiring and power wiring in the

same wire conduit. To avoid interference, wires with different signal

characteristics should be routed separately.

•You can use the type of signal transmitted through a wire to

determine which wires should be kept separate. The rule of thumb

is that wiring that shares similar electrical characteristics can be

bundled together.

•Keep input wiring and output wiring separated.

•We strongly advise that you label wiring to all devices in the

system.

Grounding the Moxa IMC

Grounding and wire routing help limit the effects

of no

ise due to electromagnetic interference

(EMI). Run the ground connection from the

right

most connector of the 3-contact terminal

block to the grounding surface

before

connecting

the devices.

ATTENTION

This product is

intended to be mounted to a well-grounded

mounting surface such as a metal panel.

Wiring the Power Inputs

The two leftmost contacts of the 3-contact terminal block connector on

the IMC’s top panel are used for the IMC’s DC inputs. Take the

following steps to wire the IMC’s DC power inputs:

STEP 1: Insert the negative/positive DC wires

into the V

-/V+ terminals.

STEP 2:

To keep the DC wires from pulling

loose, use a small flat

-blade screwdriver to

tighten the wire

-clamp screws on the front of

the term

inal block connector.

STEP 3:

Insert the plastic terminal block

connector prongs into the terminal block

receptor, which is located on IMC’s top panel.

- 6 -

Communication Connections

RJ45 Ethernet Port Connection

The IMC-21A has one 10/100BaseT(X) Ethernet port located on the

front panel for connecting to Ethernet-enabled devices.

Pinouts and cable wiring diagrams for both MDI (NIC-type) and MDI-X

(HUB/switch-type) ports for both straight-through and crossover

Ethernet cables are shown below:

MDI Port Pinouts

MDI-X Port Pinouts

8-pin RJ45

Signal

Tx+

Tx-

Rx+

Rx-

Signal

Rx+

Rx-

Tx+

Tx-

Straight-Through Cable Wiring

CrossOver Cable Wiring

- 7 -

Fiber Optic Port Connection

The concept behind the SC/ST port and cable is quite straightforward.

Suppose you are connecting devices I and II. Contrary to electrical

signals, optical signals do not require a circuit in order to transmit data.

Consequently, one of the optical lines is used to transmit data from

device I to device II, and the other optical line is used transmit data

from device II to device I, for full-duplex transmission.

All you need to remember is to connect the Tx (transmit) port of device

I to the Rx (receive) port of device II, and the Rx (receive) port of

device I to the Tx (transmit) port of device II. If you make your own

cables, we suggest labeling the two sides of the same line with the

same letter (A-to-A and B-to-B, as shown below, or A1-to-A2 and B1-

to-B2).

SC-Port Pinouts

SC-Port to SC-Port Cable Wiring

ST-Port Pinouts

ST-Port to ST-Port Cable Wiring

ATTENTION

This is a Class 1 Laser/LED product. To avoid causing serious

damage to your eyes, do not stare directly into the laser beam.

- 8 -

DIP Switch Settings

DIP No.

Function ON

OFF

(Default setting)

Force Fiber Port Duplex

Half-duplex

Full-duplex

“OFF”: Forces Full-duplex on Fiber port.

“ON”: Forces Half-duplex on Fiber port.

Link Fault Pass Through

Disable

Enable

“OFF”: Enables “Link Fault Pass Through”, the link status on

the TX port will inform the FX port of the same device and

vice versa.

“ON”: Disables “Link Fault Pass Through”, the link status on

the TX port will not inform the FX port.

Force TP Duplex

Half-duplex

Full-duplex

(Only when Auto Negotiation (DIP 5) is disabled)

“OFF”: Forces Full-duplex on Ethernet port.

“ON”: Forces Half-duplex on Ethernet port.

Force TP Speed

10Mbps

100Mbps

(Only when Auto Negotiation (DIP 5) is disabled)

“OFF”: Forces 100Mbps on Ethernet port.

“ON”: Forces 10Mbps on Ethernet port.

Auto Negotiation

Disable

Enable

“OFF”: Enables “Auto Negotiation” function; the speed and

duplex states for each port link segment are automatically

configured using the highest performance interoperation

mode.

“ON”: Disables “Auto Negotiation” function; the speed and

duplex states depend on the DIP 3 & 4 configuration.

After changing the DIP switch setting, you will need to power off and

then power on the IMC-21A, or use a pointed object to hold the reset

button down for five seconds to activate the new setting.

- 9 -

LED Indicators

The front panel of the Moxa IMC contains several LED indicators. The

function of each LED is described in the table below.

LED

Color

State

Description

PWR AMBER

Power is being supplied to the power

input.

Off Power is not being supplied to the

power input.

100M

(FX) GREEN

FX port’s 100 Mbps link is active.

Blinking

Data is being transmitted at 100 Mbps.

Off

FX Port’s 100 Mbps link is inactive.

FDX/COL

(FX) GREEN

100BaseFX port is transmitting in full-

duplex mode.

Blinking

A data collision has occurred.

Off

100BaseFX port is transmitting in half-

duplex mode.

100M

(TP) GREEN

TP port’s 100 Mbps link is active.

Blinking

Data is being transmitted at 100 Mbps.

Off

TP port’s 100 Mbps link is inactive.

10M

(TP) GREEN

TP port’s 10 Mbps link is active.

Blinking

Data is being transmitted at 10 Mbps.

Off

TP port’s 10 Mbps link is inactive.

LFP: DIP switch is set to “LFP” mode

Device 1

TP LED

DUTA TP

LNK LED

DUTA FO

LED

DUTB FO

LED

DUTB TP

LNK LED

Device 2

TP LED

TP1

Faulted

OFF OFF OFF OFF OFF OFF

F1 Faulted

OFF

F2 Faulted

OFF

TP2

Faulted

OFF OFF OFF OFF OFF OFF

F1 F2

DUTA DUTB

TP1 TP2

Device1 Device2

- 10 -

LFP: DIP switch is set to “DIS” mode

Device 1

TP LED

DUTA TP

LNK LED

DUTA FO

LED

DUTB FO

LED

DUTB TP

LNK LED

Device 2

TP LED

TP1

Faulted

OFF OFF ON ON ON ON

F1 Faulted

OFF

F2 Faulted

OFF

TP2

Faulted

ON ON ON ON OFF OFF

Auto MDI/MDI-X Connection

The Auto MDI/MDI-X function allows users to connect the Moxa IMC’s

10/100BaseT(X) ports to any kind of Ethernet device, regardless of the

type of Ethernet cable used for the connection. This means that you can

use either a straight-through cable or crossover cable to connect the

IMC to Ethernet devices.

Dual Speed Functionality and Switching

The Moxa IMC’s 10/100 Mbps switched RJ45 port auto negotiates with

the connected device for the fastest data transmission rate supported

by both devices. All models of Moxa IMC are plug-and-play devices, so

that software configuration is not required during installation or

maintenance. The half-/full-duplex mode for the switched RJ45 ports is

user dependent and changes (by auto-negotiation) to full- or half-

duplex, depending on which transmission speed is supported by the

attached device.

Autonegotiation and Speed Sensing

The IMC-21A series’ RJ45 Ethernet port supports autonegotiation in

10BaseT and 100BaseT(X) modes, with operation governed by the IEEE

802.3u standard. This means that some nodes could be operating at 10

Mbps, while at the same time, other nodes are operating at 100 Mbps.

Autonegotiation takes place when an RJ45 cable connection is made;

each time a LINK is enabled. The Moxa IMC advertises its capability for

using either 10 Mbps or 100 Mbps transmission speeds, with the device

at the other end of the cable expected to advertise similarly. Depending

on which type of device is connected, the devices will agree to operate

at either 10 Mbps or 100 Mbps.

If a Moxa IMC’s RJ45 Ethernet port is connected to a non-negotiating

device, it will default to 10 Mbps speed and half-duplex mode, as

required by the IEEE 802.3u standard.

F1 F2

DUTA DUTB

TP1 TP2

Device1 Device2

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