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EXPRESS 8-PORT MUX

7

2.3 Connectors and Indicators

The Mux’s LEDs and connectors are described below. Refer to Figures 2-1 and 2-2 to locate each connector or
indicator.

Figure 2-1. The Express 8-Port Mux’s Front Panel.

Figure 2-2. The Express 8-Port Mux’s Rear Panel.

Power LED

On when the Express 8-Port Mux is powered up.

TX Activity LED

On when a signal is transmitted to the fiber optic aggregate link.

RX Activity LED

On when a signal is received from the fiber optic aggregate link and the
Mux synchronizes to it.

Polling Group Status LEDs

The upper green LEDs are express mode indicators. These LEDs activate
when an express signal is detected, and they remain on until a 1-Mbps signal
is detected or a system reset occurs. The lower green LEDs are data activity
indicators. These LEDs activate when a signal is present.

Polling Group Connectors

There are two polling groups. Each polling group has been divided into two
port groups. Polling group #1 consists of ports 0 through 3 (port groups A
and B), and polling group #2 consists of ports 4 through 7 (port groups C
and D). 

Ports within a polling group must be connected to ports from a common

controller.

IIIIIIIIIIIIIIIIIIIIIIIIIIIIII

IIIIIIIIIIIIIIIIIIIIIIIIIIIIII

POWER

Express 8 Port Mux

2X

6

GROUP D

2X

7

2X

0

GROUP A

2X

1

2X

4

GROUP C

2X

5

2X

2

GROUP B

2X

3

TX

LINK

STATUS

RX

•   •   •   •   •   •   •   •

Power

Activity LEDs

(TX and RX)

FCC label

DB25

Configuration

switches

Fiber optic

link

DC power

connection

External power supply

Product

identification

label

Polling Group #1 Status

LEDs and Connectors

Polling Group #2 Status

LEDs and Connectors

Summary of Contents for IC219A

Page 1: ...746 5500 or fax 724 746 0746 Mailing address Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com CUSTOMER SUPPORT INFORMATION JUNE 2000 IC21...

Page 2: ...rucciones de seguridad y operaci n deber n ser guardadas para referencia futura 3 Todas las advertencias en el aparato el ctrico y en sus instrucciones de operaci n deben ser respetadas 4 Todas las in...

Page 3: ...ventilaci n 18 Servicio por personal calificado deber ser provisto cuando A El cable de poder o el contacto ha sido da ado u B Objectos han ca do o l quido ha sido derramado dentro del aparato o C El...

Page 4: ...HIS MANUAL ST is a registered trademark of AT T AS 400 and IBM are registered trademarks of International Business Machines Corporation Any other trademarks mentioned in this manual are acknowledged t...

Page 5: ...cators 7 3 Configuration 8 3 1 Active Pair Setup 8 3 2 Configuration Switch Settings 9 3 3 Mode Description 10 3 4 Collapsed Rings 11 3 5 Connections 11 4 Installation 14 4 1 Host Side Multiplexor Ins...

Page 6: ...6600 ft 2011 7 m Speed 1 or 2 Mbps depending on IBM 5250 protocol Connectors 8 RJ 45 1 DB25 M 1 pair of ST Indicators LEDs Power Port Activity Mode Peak Power Wavelength 820 nanometers Operating Temp...

Page 7: ...roughput rates even when connected to standard legacy devices The Express 8 Port Mux allows the split polling feature to remain enabled with performance of up to 4 times greater than standard legacy 1...

Page 8: ...l is detected or a system reset occurs The lower green LEDs are data activity indicators These LEDs activate when a signal is present Polling Group Connectors There are two polling groups Each polling...

Page 9: ...adian Electrical Code 9 For your safety power outlets must be properly wired and grounded 10 Never attempt to service equipment connected to the data cable network or the grounded receptacle during an...

Page 10: ...B25 is disconnected If the DB25 is selected the RJ 45 connectors are disconnected All jumper settings must be identical To reinstall the top cover tilt the top cover down and slide the top cover forwa...

Page 11: ...xors are connected in series with fiber optic transmit to fiber optic receive they form a ring topology see the illustration below RX TX HOST PORT CONNECTIONS DEVICE CONNECTIONS MULTIPLEXOR MULTIPLEXO...

Page 12: ...s Figure 3 2 Typical AS 400 Installation TX RX TX RX TX RX M D F TX RX IDF Intermediate Distribution Frame Main Distribution Frame Fiber optic patch panel Fiber optic jumpers Remote multiplexor 1 Remo...

Page 13: ...A Polling group 1 Port and polling group assignments on the twinax brick for the new AS 400 WSC with split polling feature front view Mini Twinax Balun IC067A Mini Twinax Balun IC067A Mini Twinax Balu...

Page 14: ...4 through 7 make up the other polling group The twinax brick detail illustrates a proper connection Figure 3 6 Typical System 3X Installation 62 5 micron multimode Express 8 Port Mux Stars Patch pane...

Page 15: ...iguration switches on the rear panel of the host side Express 8 Port Mux as follows Switches 1 and 2 ON for a point to point application or Switch 1 ON and Switch 2 OFF for a ring application 2 The Ex...

Page 16: ...ltimode fiber optic cable attached to the host side Multiplexor s TX to the device side Multiplexor s RX optical link connector located on the rear panel of the Express 8 Port Mux and connect the mult...

Page 17: ...onnected with fiber optic jumpers Verify the application with a host port and a terminal 3 Search through the common problems and possible causes provided in this chapter The Express 8 Port Mux front...

Page 18: ...matches the Express 8 Port Mux s pinout Verify that the host side balun s pinout polarity match the device side balun s pinout polarity Devices interfere with each other Verify that there is one host...

Page 19: ...escription including the nature and duration of the problem when the problem occurs the components involved in the problem any particular application that when used appears to create the problem or ma...

Page 20: ...1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 Copyright 2000 Black Box Corporation All rights reserved...

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