Digital Equipment DECserver 900TM Manuale utente

DECserver 900TM

INSTALLATION

The DECserver 900TM is a 32-port network access server that connects asyn–

chronous devices, including terminals, printers, modems, or PCs to an Ethernet

localareanetwork(LAN).ItoperatesinaDEChub900MultiSwitchorasastanda-

loneaccessserver.TheDECserver900TMisconfiguredwith32MJ8(RJ-45)con-

nectors, and provides limited modem control with the 8-pin connectors. Each port

supports 16 baud rates from 75 baud to 115.2 Kbaud. The DECserver 900TM in-

cludes 4 megabytes (MB) of standard memory, and can be expanded to 8 MB.

 

 

LKG–8088-93I

2DECserver 900TM

The following are trademarks of Digital Equipment Corporation:

DEC,DECconnect,DEChub,DEChubONE,DECserver,Digital,MultiSwitch,ULTRIX,

OpenVMS, and the Digital logo.

UNIX is a trademark of UNIX System Laboratories, Inc.

EK–DSRVZ–IN. A01

August 1993

The information in this document is subject to change without notice and should not be

construed as a commitment by Digital Equipment Corporation. Digital Equipment Corpo-

ration assumes no responsibility for any errors that may appear in this document.

Printed in U.S.A.



FCC NOTICE – Class A Computing Device:

This equipment generates, uses, and may emit radio frequency energy. The equipment

has been type tested and found to comply with the limits for a Class A computing device

pursuanttoSubpartJofPart15ofFCCRules,whicharedesignedtoprovidereasonable

protection against such radio frequency interference when operated in a commercial

environment.Operationofthisequipmentinaresidentialareamaycauseinterference;in

which case, measures taken to correct the interference are at the user’s expense.

VCCI NOTICE – Class 1 Computing Device:

This equipment is in the 1st Class category (information equipment to be used in

commercial and/or industrial areas) and conforms to the standards set by the Voluntary

Control Council for Interference by Data Processing Equipment and Electronic Office

Machines aimed at preventing radio interference in commercial and/or industrial areas.

Consequently, when used in a residential area or in an adjacent area thereto, radio

interference may be caused to radios and TV receivers.

Read the instructions for correct handling.

Front Panel

DECserver 900TM 3

1) Power LED. Lights when the module has power.

2) Module OK LED. Lights when the module passes self-

test. Flashes when a non-fatal error occurs on self-test.

If the module fails self-test, the Module OK LED is off.

3) Network Traffic. Flashes or remains on depending on

network activity.

4) Network OK. Lights when the module has an active net-

work connection.

5) Seven-Segment Display. Provides error and status

information.

6) Flash RAM Slot. Provides an opening in which to insert

the Flash RAM card.

7) Reset Switch. Resets the module to factory defaults.

To reset: while turning on the power, press and hold the

reset switch until the Module OK LED flashes; or if the

DECserver 900TM is in operational mode (the seven

segment display shows the “race track” pattern), hold the

switch in for 5 seconds. The module reboots with factory

defaults.

8) Serial Port Connectors. Connect the asynchronous

devices to the DECserver 900TM. The serial port connec-

tors are labeled 1 to 32.

LKG-8089-93I

You do not have to shut off the DEChub 900 MultiSwitch power when you install a module in the

hub. TheDECserver 900TM hasa built-in hot-swapswitch that allowsquick and easypower-on

installation and removal.

Install the module into the DEChub 900 MultiSwitch.

Installing the Module into a DEChub 900 MultiSwitch



4 DECserver 900TM





The release lever is

lifted and clicks

back into place

as the module

is seated

Mounting

Tab

LKG–8092-93I

a. Check the Hub Manager Status Display to ensure that there is

adequate power in the DEChub 900 MultiSwitch to accommodate

this module’s power rating. You may have to add another

power supply to the DEChub 900 MultiSwitch to accommodate

this module without affecting other modules already in the hub.

b. Locate an available DEChub slot.

c. Place the module’s bottom mounting tab into the mounting slot

on the hub.

d. Pivot the module on the mounting tab and align the connectors.

You hear the release lever click when the module is seated.

e. Press down on the release lever to ensure that it is locked.

f. Seating the module initiates the power up sequence and

self-test within 10 seconds if the available DEChub power is

sufficient. Read the Hub Manager Status Display for the

module status and power consumption.

Verify power.

Installing the Module in a DEChub 900 MultiSwitch (continued)



DECserver 900TM 5

a. With power on in the DEChub, verify

that the Power LED is on.

b. Verify that the Module OK LED

remains on after the module

completes self-test.

Connect the port cables to any

available port connector on the module.

Connect the port cables.



LKG–8091-93I

LKG–8090-93I

Module installation is complete.

Notes:

Port 1 by default may be used as a

console port.

The DECserver 900TM does not sup-

port the out-of-band management

(OBM) port or the setup port on the

DEChub ONE. No devices should be

connected to these ports.

Installing Flash RAM

6 DECserver 900TM

LKG–8091-93I

If you using a Flash RAM card for loading the operational software, perform the following:

a. The Digital label should be on the same side as the DECserver 900TM logo on

the front panel of the module.

b. Whenproperlyinserted, the FlashRAMcard protrudes fromthefrontpanel about 1/4inch.

The Flash RAM card is keyed and cannot be inserted improperly.

TheFlashRAMcardcanbehotswappedandmaybeinsertedorremovedatanytime. Ifyouareboot-

ing from the Flash RAM card, insert it before powering the module or during the self-test phase.

Once you boot the DECserver 900TM, the card may be left in place or removed.

Insert the Flash RAM card into the Flash RAM slot on the front of the module.

Removing the Module from the DEChub 900 MultiSwitch

DECserver 900TM 7

Remove the module from the DEChub.

Disconnect the port connector cables from the module.

a. Lift the release lever on top of the

hub slot.

b. Pivot the module back on its bottom

mounting tab until it disengages from

the hub.

Mounting

Tab

LKG–8098-93I

Lift

release

lever

Cabling

8DECserver 900TM

Table 1 shows the maximum cable lengths for a number of data rates using DECserver

900TM supported line protocols.

For more information about cabling and configuring of local area networks (LANs) and using

DECconnect system products, refer to the

DECconnect System Planning and Configuration

Guide

   "       !   !

      

1For able type H8245ĆA or H8246ĆB, 24 AWG, 4 pair, twisted pair.

EIA-432-A/V1.0 4.8 K  (1600 ft)

9.6 K (900 ft)

19.2 K (500 ft)

38.4 K (280 ft)

57.6 K (100 ft)

115.2 K

(200 ft)

(40 ft)

500 m

280 m

150 m

85 m

30 m

12 m

DEC 423 9.6 K 900 m (3000 ft)

19.2 K

38.4 K

300 m (1000 ft)

150 m (500 ft)

60 m57.6 K

115.2 K 30 m (100 ft)

EIA-232-E/V.28 9.6 K

19.2 K

38.4 K

57.6 K

115.2 K

(200 ft)60 m

30 m (100 ft)

15 m (50 ft)

6 m (20 ft)

3 m (10 ft)

Cabling (continued)

DECserver 900TM 9

Ta le 2 descri es the ca le connections that are compati le with the DECserver 900TM

Ethernet and serial line connectors.  Wiring diagrams of individual ca les are shown on

page 11.

 

H8584ĆAC MP8 to MMJ adapter Use this adapter to convert a serial port to

a DECserver 300 terminal server configuĆ

ration.

Use this office ca le to connect from the

6Ćpin MMJ port of a terminal or printer to

the 8Ćpin MJ faceplate data connector.

The BN24H is configured with one 6Ćpin

modified modular plug, one standard

8Ćpin plug, and crossover wiring.

BN24H MP8 to MP6 office ca le

H8585ĆAB1 MJ8 to DB25 (male)

modem adapter

H8585ĆAC1MJ8 to DB25 (male)

modem adapter

         

BN25G MP8 to MP8 equipment ca le Use this ca le as either a patch cord or

office ca le.  It is configured with stanĆ

dard 8Ćpin modular plugs, which connect

four unshielded twisted pairs pinĆtoĆpin.

1Adapters H8585ĆAB and H8585ĆAC are not for connection to pu lic works in Sweden, Germany, or Japan.

H8585ĆAA MJ8 to DB9 (female)

nullĆmodem adapter

Use this adapter with the BN25G ca le to

convert the DECserver 900TM connector to

the DB9 connector for ca ling to PC asynchĆ

ronous ports.

Use this adapter with the BN25G ca le to

connect lowĆspeed modems to the DECservĆ

er 900TM.

Before connecting cables to the DECserver 900TM ports, you must verify supported modem

signals with the person managing the DECserver 900TM. This information is necessary to

determine what cables to use. For more information on the signals, refer to the

Network

Access Server Management

manual.

Use this adapter with the BN25G ca le to

connect highĆspeed modems to the DECĆ

server 900TM.

10 DECserver 900TM

The DECserver 900TM uses an MJ8 connector on the serial ports, and can be configured by

the software to support the pin signals indicated in Table 3.

123 567 84

RXD GND RXD TXD GND

CTS

RI DSRS

TXD DTR

DSR

CTS or RI

(Selected by

  soft are)

RTS or DSRS DSR or DCD

RTS

DCD

Table 3  DECserver 900TM Serial Line Ports

Signal Name

Soft are Default1

Soft are Alternative1

1To change default values, refer to the

Network Access Server Management

manual.

PIN 1 8

RXD GND

RXD

TXD GND

TXD

DTR

(Selected by

  soft are)

(Selected by

  soft are)

Cabling (continued)

Pins

Indice

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