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Troubleshooting
DECbrouter 90 Standalone Troubleshooting

Table 3–1 (Cont.) Troubleshooting a DECbrouter 90 Standalone Unit

If...

Then...

Do this...

The network activity

LED is off

There is low network

activity or no network

activity.

Ensure that network activity is

present. If the network activity

LED still fails to turn on, then

turn the unit off and on by

unplugging and replugging the

power supply.
Check that the network activity

LED turns on momentarily.

If the network

activity LED turns on

momentarily, then the

network activity LED

portion of testing has

passed. If the network

LED still fails to turn

on, then the DECbrouter

90 is defective.

Replace the DECbrouter 90.

The serial port status

LED is off

Ensure that the cable

has activity on it. If

the LED still fails to

turn on, then the port is

defective.

Switch ports on either

a DECbrouter 90T2 or

DECbrouter 90T2A and replace

the defective DECbrouter 90T1

with a working DECbrouter

90T1.

3–2 Troubleshooting

Содержание DECbrouter 90

Страница 1: ...DECbrouter 90T InstallationandOperating Information Order Number EK DECBR OM A01...

Страница 2: ...clause at DFARS 252 227 7013 FCC NOTICE The equipment described in this manual generates uses and may emit radio frequency energy The equipment has been type tested and found to comply with the limit...

Страница 3: ...9 2 Installation Standalone Installation 2 1 Select a location 2 1 Place the DECbrouter 90 on a table 2 1 Mount the DECbrouter 90 on a wall 2 2 Mount the DECbrouter 90 on a wall 2 2 Connect the cables...

Страница 4: ...Power Input A 3 Parts List A 4 B Related Documentation C DECbrouter 90 Installation Information for the United Kingdom Service Categories C 1 Host Power Rating C 2 Module Isolation C 3 Safety Status...

Страница 5: ...Ds 1 10 3 1 Troubleshooting a DECbrouter 90 Standalone Unit 3 1 3 2 Troubleshooting a DECbrouter 90 in a DEChub 90 Backplane 3 3 A 1 X 21 Cable Connections BC12F 06 17 03580 01 A 5 A 2 RS422 Cable Con...

Страница 6: ......

Страница 7: ...ganization This manual contains three chapters and three appendices Chapter 1 provides an overview of the DECbrouter 90 and describes the features of the DECbrouter 90 Chapter 2 provides instructions...

Страница 8: ...nual uses the following conventions Convention Meaning Note Provides general information about the current topic A number in a black circle in text refers to the corresponding number in an accompanyin...

Страница 9: ...outer 90T2A Features The DECbrouter 90 provides the following features Choice of Ethernet in either ThinWire 10Base2 or twisted pair 10BASET Choice of serial port configurations 1 EIA530A2 RS232 V 28...

Страница 10: ...ed by the cable attached to the serial port EIA530A RS232 V 28 RS449 RS422 V 11 RS449 RS423 V 10 V 35 V 36 X 21 Leased Lines The console port consists of an asynchronous RS232 serial port DECbrouter 9...

Страница 11: ...serial ports The Ethernet interface is either a ThinWire 10Base2 port or a twisted pair 10BASET port exclusively The synchronous serial port supports any two of the following six standards in any comb...

Страница 12: ...pported 90T1 90T2 90T2A Interfaces 2 3 3 Ethernet1 1 1 1 Synchronous Serial2 1 2 2 EIA530A X X RS232 V 28 X X X RS449 RS422 V 11 X X RS449 RS423 V 10 X X V 35 X X V 36 X X X 21 Leased Lines X X X Cons...

Страница 13: ...uration of the DECbrouter 90T1 in an Ethernet local area network LAN If you use the DECbrouter 90 as a standalone unit then it operates without using the DEChub 90 and uses a separate power supply The...

Страница 14: ...er 90T1 Connection DECbrouter 90T1 DECbrouter 90T1 LAN2 Ethernet ThinWire Modem LAN1 Ethernet ThinWire DECrouter 250 Modem EIA530 V 35 LJ 02754 TI0 DECbrouter 90T1 LAN3 Ethernet ThinWire DECbrouter 90...

Страница 15: ...2 Typical DECbrouter 90T2 or DECbrouter 90T2A Connection DECbrouter 90T2 LAN1 Ethernet ThinWire LJ 02755 TI0 Modem LAN2 Ethernet ThinWire Modem DECbrouter 90T2A LAN4 Ethernet ThinWire Modem Modem Mode...

Страница 16: ...sing the cables for the various types of connections Refer to Appendix A Tables A 1 through A 6 for a listing of the different types of cables and the various connections 4 Connect a console device to...

Страница 17: ...EDs and Connectors Figure 1 3 shows the DECbrouter 90 LEDS and Table 1 2 describes the LEDs and connectors Figure 1 3 DECbrouter 90 LEDs DECbrouter 90T1 LJ 02747 TI0 DG 10 11 12 8 9 1 2 3 4 5 6 7 DECb...

Страница 18: ...o the DECbrouter 90 On Port 0 is functional Off Port 0 has failed or has been partitioned Port 0 activity status indicator Monitors the activity of the Ethernet port On The port is transmitting or rec...

Страница 19: ...backplane or connected through the twisted pair 10BASET connector Backplane connector Provides Port 0 network and power connections to the DECbrouter 90 when the DECbrouter 90 is installed in the DEC...

Страница 20: ...nchronous serial port 2 connection This connection supports one of the following standards EIA530A1 RS232 V 28 V 24 RS449 RS422 V 111 RS449 RS423 V 101 V 352 V 361 X 21 leased lines 1Not available on...

Страница 21: ...nstall the DECbrouter 90 in a DEChub 90 Ethernet backplane see the Backplane Installation section Standalone Installation To install the DECbrouter 90 as a standalone unit either on a table or wall pe...

Страница 22: ...own in Figure 2 1 Figure 2 1 Removing the Back Cover L J 0 0 3 2 0 T I 0 Mount the DECbrouter 90 on a wall 1 Use the mounting holes on the cover to determine the position of the mounting screws on the...

Страница 23: ...lone Installation 3 Remove the back cover from the wall Figure 2 2 Mounting the DECbrouter 90 LJ 00701 TI0 4 Attach the back cover to the DECbrouter 90 5 Mount the DECbrouter 90 onto the mounting scre...

Страница 24: ...ol on the DECbrouter 90 and push the connector straight in 2 Connect the DECbrouter 90 power supply to the power source a Place one end of the power cord into the connector located on the power supply...

Страница 25: ...9 connector Figure 2 3 shows the DECbrouter 90T1 with a twisted pair connection Figure 2 3 DECbrouter 90T1 with a Twisted Pair 10BASET Connection LJ 02750 TI0 DECbrouter 90T1 EIA 530A RS232 V 28 RS449...

Страница 26: ...4 shows the DECbrouter 90T1 with a ThinWire connection Figure 2 4 DECbrouter 90T1 with a ThinWire 10Base2 Connection LJ 02751 TI0 DECbrouter 90T1 ThinWire EIA 530A RS232 V 28 RS449 RS422 V 11 RS449 R...

Страница 27: ...onnection Figure 2 5 DECbrouter 90T2 or DECbrouter 90T2A with a Twisted Pair 10BASET Connection LJ 02757 TI0 DECbrouter 90T2 1 2 EIA 530A RS232 V 28 RS449 RS422 V 11 RS449 RS423 V 10 V 35 V 36 X 21 LL...

Страница 28: ...connection Figure 2 6 DECbrouter 90T2 or DECbrouter 90T2A with a ThinWire 10Base2 Connection LJ 02756 TI0 DECbrouter 90T2 ThinWire 1 2 EIA 530A RS232 V 28 RS449 RS422 V 11 RS449 RS423 V 10 V 35 V 36...

Страница 29: ...ces to ports 1 and 2 A port LED should turn on if the port is correctly connected and when the device receives its first network activity 2 Verify the operation of each device by sending information t...

Страница 30: ...op mounting hole on the cover 2 Lift the internal latch with the screwdriver then pull the cover away and down from the top of the DECbrouter 90 as shown in Figure 2 7 Figure 2 7 Removing the Back Cov...

Страница 31: ...n audible click when the DECbrouter 90 is securely latched in place Figure 2 8 Mounting the DECbrouter 90 LJ 02748 TI0 DECbrouter 90T1 Note You can install or remove the DECbrouter 90 from the DEChub...

Страница 32: ...t of activity on the indicated port 5 Connect the console using an RS232 DB9 connector Install and verify devices 1 Connect serial ports 1 and 2 using the proper cables for the signals desired The cor...

Страница 33: ...outer 90 installed in a DEChub 90 configuration DECbrouter 90 Standalone Troubleshooting Use Table 3 1 to troubleshoot a standalone DECbrouter 90 Table 3 1 Troubleshooting a DECbrouter 90 Standalone U...

Страница 34: ...power supply Check that the network activity LED turns on momentarily If the network activity LED turns on momentarily then the network activity LED portion of testing has passed If the network LED s...

Страница 35: ...the DEChub 90 power LED is on and the other power LED components are on then the DECbrouter 90 has a power problem Reseat the DECbrouter 90 in either the same slot or another slot If the power LED on...

Страница 36: ...n the DECbrouter 90 is defective Replace the DECbrouter 90 The port 0 network activity LED is off The DECbrouter 90 or any other unit in the DEChub 90 may not be connected to an active segment Connect...

Страница 37: ...3 and V 24 RS232 standards Physical Dimensions The following table describes the physical dimensions of the DECbrouter 90 Dimension Measurement Height 3 5 cm 1 4 in Width 28 0 cm 11 0 in Depth 14 0 cm...

Страница 38: ...minimum Altitude Sea level to 2 4 km 8000 ft Air flow Convectively cooled A minimum of 10 cm 4 in of space must be provided on both ends of the DECbrouter for adequate air flow Shipping Environment T...

Страница 39: ...nal 208 Vac to 256 Vac nominal 240 Vac AC cord length 6 feet Current at 120 volts 25 amps Current at 240 volts 125 amps Frequency 50 Hz to 60 Hz Power consumption 9 watts Output voltage 5 1 Vdc DC cor...

Страница 40: ...220 Vac Pwr cord term 3 100MM 250V 2 5M Pwr cord term 3 1 0 MM Pwr cord term 3 1 0 MM Pwr cord term 3 1 0 MM 10A Pwr cord term STR Pwr cord term 3 1 0 MM 10A 17 00199 21 17 00364 18 17 00210 13 17 004...

Страница 41: ...ound 5 2 T A TX Data A 30 9 T B TX Data B1 6 5 I A DCD A 31 12 I B DCD B2 8 3 C A RTS A 33 10 C B RTS B 10 4 R A RX Data A 35 11 R B RX Data B2 17 6 S A TX Clock A 42 13 S B TX Clock B2 13 15 RX Clock...

Страница 42: ...Ground1 4 11 DSR A 29 29 DSR B 5 4 TX Data A 30 22 TX Data B 6 13 DCD I A 31 31 DCD I B 8 7 RTS C A 33 25 RTS C B 9 9 CTS A 34 27 CTS B 10 6 RX Data A 35 24 RX Data B2 11 15 Ring Indicate 12 20 DCE G...

Страница 43: ...DTR A 39 30 DTR B 15 17 Clock A 40 35 Clock B 1 5 TX Clock A 42 23 TX Clock B2 18 18 Test Indicate 37 19 37 DTE Ground1 20 10 Local Loop 41 16 Speed Select 45 14 Remote Loop Shell Shell Shield braid 1...

Страница 44: ...n Connector P1 To V 35 Pin Connector P2 Signal Name 1 26 Code Ground 1 4 E DSR A 6 F DCD I A 9 D CTS A 11 J Ring Indicate 21 Y TX Clock A 46 A TX Clock B 22 U CK A 47 W Clock B 23 R RX Data A 48 T RX...

Страница 45: ...erall Cable Shield 20 K Local Loop 1Contacts tied together Table A 4 describes the cable connections for the RS530A standard Table A 4 RS530A Cable Connections BC12J 06 17 03760 01 From Pin Connector...

Страница 46: ...CTS A 34 13 CTS B 10 3 RX Data A 35 16 RX Data B2 11 22 Ring Indicate 12 23 DCE Ground 13 17 RX Clock A 38 9 RX Clock B2 15 24 Clock A 40 11 Clock B 17 15 TX Clock A 42 12 TX Clock B 2 18 25 Test Ind...

Страница 47: ...ell Shell Shield Braid 1Contacts tied together Table A 5 describes the cable connections for the RS423 standard Table A 5 RS423 Cable Connections BC12K 06 17 03761 01 From Pin Connector P1 To RS423 Pi...

Страница 48: ...al Name 10 6 RX Data A 35 24 RX Data B 11 15 Ring Indicate 12 20 DCE Ground 13 8 RX Clock A 38 26 RX Clock B 17 5 TX Clock A 42 23 TX Clock B 18 18 Test Indicate 20 10 Local Loop 32 7 RTS C 37 19 22 2...

Страница 49: ...ock Table A 6 describes the cable connections for the V 24 RS232 standard Table A 6 V 28 RS232 Cable Connections BC12L 06 17 03762 01 From Pin Connector P1 To V 24 RS232 Pin Connector P2 Signal Name 1...

Страница 50: ...7 03762 01 From Pin Connector P1 To V 24 RS232 Pin Connector P2 Signal Name 17 15 TX Clock A 18 25 Test Indicate 19 24 Clock 20 18 Local Loop 32 4 RTS 12 29 31 34 35 37 38 42 7 DTE Ground 1 41 23 Spee...

Страница 51: ...describes the cable connections for the console converter Table A 7 Cable Connections for Console Converter From Pin Connector P1 To Pin Connector P2 Signal Name 1 4 DTR 2 3 RD 3 4 5 GND 5 2 SD 6 8 6...

Страница 52: ......

Страница 53: ...n and Reference Volume 3 EK DECB3 CG DECbrouter 90 Systems Error Messages EK DECBR ML DECbrouter 90 Products Command Summary EK DECBR CS DECbrouter 90 Products Getting Started EK DECBR GS You can orde...

Страница 54: ......

Страница 55: ...ervice categories Host power rating Module isolation Safety warnings for UK installations only Cable approval Supported cables Equipment between the approved module and a Digital circuit PTT Service C...

Страница 56: ...2 X 21bis V 35 ISO 2593 BS 6623 part4 1986 Adapter BC12G 06 17 03766 01 Extension BC19L XX xx feet 2 48K 56K 64K 2048K Yes Yes No No Yes No No No Yes Yes Yes No 1BT British Telecommunications plc Hul...

Страница 57: ...other than its own approved cables those cables must benefit from relevant general approval NS G 1235 100009 and or conform to any other applicable requirements Supported Cables Digital supports all o...

Страница 58: ...ust conform to the following The overall transmission characteristics of all other equipment must not have any material effect on the electrical conditions between the equipment and the digital circui...

Страница 59: ...ons installation 2 1 Connection sample 1 5 1 7 Connections RS422 A 6 to A 7 RS423 A 11 to A 13 RS530A A 9 to A 11 Connections cont d V 24 A 13 to A 14 V 35 A 7 to A 9 X 21 A 5 Connector backplane 1 11...

Страница 60: ...BC12J 06 A 9 to A 11 BC12K 06 A 11 to A 13 BC12L 06 A 13 to A 14 Part number A 4 Part Number 17 03580 01 A 5 Part Number 17 03760 01 A 9 to A 11 Part Number 17 03761 01 A 11 to A 13 Part Number 17 037...

Страница 61: ...RS449 1 11 V 10 1 11 V 11 1 11 V 28 1 11 V 35 1 11 V 36 1 11 X 21 leased lines 1 11 Synchronous serial port 2 1 12 EIA530A 1 12 RS232 1 12 RS422 1 12 RS423 1 12 RS449 1 12 V 10 1 12 V 11 1 12 Synchro...

Страница 62: ......

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