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CHAPTER 4:  TESTING/TROUBLESHOOTING

Page 42

TPXMIM Installation Guide

4.3

USING LANVIEW

The TPXMIM uses the Cabletron Systems built-in visual diagnostic and 
status monitoring system called LANVIEW. With LANVIEW, you can 
quickly scan the TPXMIM LEDs to observe network status or diagnose 
network problems.

Figure 4-3. LANVIEW LEDs

TPXMIM-22

E
P

I

M

11
12
13
14
15
16
17
18
19
20
21
22

ETHERNET

A     B     C

11

X

12

X

13

X

RCV LNK

RCV LNK RCV LNK

1
2
3
4
5

6
7
8
9

10

CLN

SN

TPXMIM-34

E
P

I

M

ETHERNET

A     B     C

CLN

1
2
3
4
5
6
7
8
9
10
11
12

RCV LNK

13
14
15
16
17
18
19
20
21
22
23
24

RCV LNK

EPIM SEL

EPIM

Port

LEDs

Channel

LEDs

Содержание TPXMIM-20

Страница 1: ... X 10 X RCV LNK RCV LNK RCV LNK 1 2 3 4 5 6 7 8 9 10 CLN TPXMIM 20 10BASE T ETHERNET E P I M SN 2 X 3 X 4 X ETHERNET A B C 5 X 6 X 7 X 8 X 9 X 10 X RCV LNK RCV LNK 1 2 3 4 5 6 7 8 9 10 CLN SN TPXMIM 34 10BASE T ETHERNET E P I M 12 1 24 13 ETHERNET A B C CLN 1 2 3 4 5 6 7 8 9 10 11 12 RCV LNK 13 14 15 16 17 18 19 20 21 22 23 24 RCV LNK SN TPXMIM 33 10BASE T ETHERNET 12 1 ETHERNET A B C CLN 1 2 3 4 ...

Страница 2: ...OT LIMITED TO LOST PROFITS ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION CONTAINED IN IT EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF KNOWN OR SHOULD HAVE KNOWN THE POSSIBILITY OF SUCH DAMAGES Copyright May 1994 by Cabletron Systems Inc P O Box 5005 Rochester NH 03867 0505 All Rights Reserved Printed in the United States of America Part Number 9031145 May 1994 SPECTRUM and LANVIEW a...

Страница 3: ...ce with the operator s manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause interference in which case the user will be required to correct the interference at his own expense WARNING Changes or modifications made to this device which are not expressly approved by the party responsible for compliance could void the user ...

Страница 4: ...ER OF LIABILITY IF YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMENT PROMPTLY RETURN THE UNUSED PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND CABLETRON SOFTWARE PROGRAM LICENSE 1 LICENSE You have the right to use only the one 1 copy of the Program provided in this package subject to the terms and conditions of this License Agreement You may not copy reproduce or transmit any part of the Program...

Страница 5: ... EVEN IF CABLETRON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES OR ON THE DURATION OR LIMITATION OF IMPLIED WARRANTEES IN SOME INSTANCES THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU UNITED STATES GOVERNMENT RESTRICTED RIGHTS The enclosed product a was developed sole...

Страница 6: ... 11 2 3 Network Requirements 13 2 3 1 10BASE T Twisted Pair Network 13 2 3 2 Multimode Fiber Optic Network 15 2 3 3 Single Mode Fiber Optic Network 16 2 3 4 Thin Net Network 17 2 4 Transceiver Requirements 17 CHAPTER 3 INSTALLATION CONFIGURATION 3 1 Unpacking the TPXMIM 19 3 2 Installing the TPXMIM 19 3 3 Configuring Boards and Ports 21 3 3 1 Assigning an Entire TPXMIM Board 22 3 3 2 Assigning Ind...

Страница 7: ... 6 Connecting a Thin Net Segment to an EPIM C 35 3 5 7 Connecting an AUI Cable to an EPIM A 37 CHAPTER 4 TESTING TROUBLESHOOTING 4 1 Pre Installation Test 39 4 2 Installation Check Out 40 4 3 Using LANVIEW 42 4 4 Troubleshooting Checklist 45 APPENDIX A TWISTED PAIR WIRING TABLES APPENDIX B EPIM SPECIFICATIONS ...

Страница 8: ... of this device and its capabilities and to help eliminate any potential problems during or after installation please be sure to read and understand all of the instructions and information in this document and in the release notes 1 1 USING THIS MANUAL You should have a general working knowledge of Ethernet or IEEE 802 3 type data networks prior to installing the TPXMIM The following summarizes th...

Страница 9: ... block to wire twisted pair segments Appendix B EPIM Specifications lists the specifications for each optional EPIM available for the TPXMIM 1 2 TPXMIM FEATURES LANVIEW Cabletron provides a visual diagnostic and status monitoring system called LANVIEW with the TPXMIM LANVIEW LEDs help you quickly identify device port and physical layer problems Switching The TPXMIM brings bank switching and indivi...

Страница 10: ...Fault Tolerance By performing its own repeater functions the TPXMIM greatly enhances the fault tolerance of the MMAC By not relying on one central module to perform repeater functions TPXMIMs eliminate a single point of failure In addition the TPXMIM provides port segment partitioning and reconnection This feature assures that problem segments do not affect any other segments If the TPXMIM detects...

Страница 11: ...egment Interface Module EPIM F1 EPIM F2 Multimode Fiber Optic Segment Interface Modules using SMA ST style connectors EPIM F3 Single Mode Fiber Optic Segment Interface Module EPIM C Thin net Coaxial Segment Interface Module EPIM A EPIM X AUI Cable Segment Interface Modules Since the TPXMIM is SNMP compliant you can control and monitor the device using various SNMP Network Management packages inclu...

Страница 12: ...E or EMM E6 refer to specific module documentation 1 5 THE TPXMIM AND MMAC BACKPLANE The Multi Media Access Center with Flexible Network Bus MMAC FNB provides the TPXMIM with power Ethernet A Bus Channel A and FNB Channel B and C access Figure 1 1 Figure 1 1 MMAC Flexible Network Bus Two types of MMACs currently support FNB architecture shunting and non shunting MMACs equipped with shunting backpl...

Страница 13: ...ring and Diagnostics System LANVIEW LEDs can help diagnose any problems such as a power failure or a cable fault Each port on the TPXMIM 20 22 modules include the following LANVIEW LEDs a RCV receive LED to indicate network activity on the port a LNK link LED to indicate the connection status of the port The TPXMIM 33 34 modules utilize the above LANVIEW LEDs for all ports except the EPIM ports Th...

Страница 14: ...hannel i e A B or C Note If at least one port connects to a particular Channel the Ethernet LED for that Channel remains ON Chapter 4 Testing Troubleshooting provides detailed descriptions of each TPXMIM LANVIEW LED 1 7 NETWORK MANAGEMENT CAPABILITIES You can control and manage the TPXMIM using any SNMP network management system The EMME or EMM E6 network management capabilities provide the necess...

Страница 15: ... NH 03867 0505 Phone 603 332 9400 Mon Fri 8AM to 8PM EST CompuServe GO CTRON from any prompt Internet Mail support ctron com Before calling Cabletron Systems Technical Support please have a description of the failure a description of any action s already taken to resolve the problem e g changing mode switches rebooting the unit etc a description of your network environment layout cable type etc ne...

Страница 16: ...to ensure satisfactory performance of this equipment Failure to follow these guidelines may produce poor network performance 2 1 OPERATING SPECIFICATIONS This section includes the operating specifications for the TPXMIM Cabletron reserves the right to change these specifications at any time without notice Channels B C Repeater Functionality Preamble Input Minimum of 40 bits Maximum equals the numb...

Страница 17: ...s one packet without a collision Environmental Requirements Operating Temperature 5 to 40C 41 to 104 F Non Operating Temperature 30 to 80C 22 to 176 F Operating Humidity 5 to 95 non condensing Safety This unit meets safety requirements of UL 1950 CSA C22 2 No 950 and EN 60950 the EMI requirements of FCC Class A and EN 55022 Class A and the EMC requirements of EN 50082 1 Warning It is the responsib...

Страница 18: ...r segments to the network Figure 2 1 shows the pinouts for the RJ45 connectors Figure 2 1 RJ45 Network Ports 2 2 2 TPXMIM 33 34 Champ Connector Specifications The TPXMIM 33 and TPXMIM 34 provide 50 pin Champ connectors to attach twisted pair segments to the network as shown in Figure 2 2 Table 2 1 shows the pinouts for the Champ connector Figure 2 2 50 Pin Champ Connectors 8 Not Used 7 Not Used 6 ...

Страница 19: ...4 RX 5 Red Brown 10 TX 5 Gray Red 35 TX 5 Red Gray 11 RX 6 Blue Black 36 RX 6 Black Blue 12 TX 6 Orange Black 37 TX 6 Black Orange 13 RX 7 Green Black 38 RX 7 Black Green 14 TX 7 Brown Black 39 TX 7 Black Brown 15 RX 8 Gray Black 40 RX 8 Black Gray 16 TX 8 Blue Yellow 41 TX 8 Yellow Blue 17 RX 9 Orange Yellow 42 RX 9 Yellow Orange 18 TX 9 Green Yellow 43 TX 9 Yellow Green 19 RX 10 Brown Yellow 44 ...

Страница 20: ...pair wire However cable quality largely determines maximum link length If you use high quality low attenuation cable you can achieve link lengths of up to 200 meters Cable delay limits maximum link length to 200 meters regardless of the cable type Note Losses introduced by connections at punch down blocks and other equipment reduce total segment length For each connector or patch panel in the link...

Страница 21: ... segment length to no greater than 200 meters Crosstalk Signal coupling between different cable pairs within a multi pair cable bundle causes crosstalk 10BASE T transceiver design alleviates concerns about crosstalk providing the cable meets all other requirements Noise Crosstalk or externally induced impulses can cause noise Impulse noise may cause data errors if the impulses occur at very specif...

Страница 22: ... fiber cable segment 19 0 dB or less for a 100 140 µm fiber cable segment Budget and Propagation Delay When you determine the maximum fiber optic cable length to incorporate fiber runs into your network you must calculate and consider the fiber optic budget a total loss of 10 0 dB or less is permissible between stations and total network propagation delay To determine the fiber optic budget combin...

Страница 23: ...usted for a 1300 nm wavelength This test verifies that the signal loss in a cable falls within the acceptable level of 10 0 dB or less for any given single mode fiber optic link Budget and Propagation Delay When you determine the maximum fiber optic cable length to incorporate fiber runs into your network you must calculate and consider the fiber optic budget a total loss of 10 0 dB or less is per...

Страница 24: ...e up to 29 tee connectors throughout the length of the cable segment for host connections If you use an excessive number of barrel connectors within the cable segment e g finished wall plates with BNC feed throughs you may need to reduce the number of host connections For special network design contact Cabletron Systems Technical Support Grounding For safety ground only one end of a thin net segme...

Страница 25: ...MIM as follows 1 Remove the shipping material covering the TPXMIM 2 Carefully remove the module from the shipping box Leave the module in its non conductive bag until you are ready to install it 3 Visually inspect the module If you notice any signs of damage contact Cabletron Systems Technical Support immediately 3 2 INSTALLING THE TPXMIM Installing the TPXMIM into any MMAC hub is an easy operatio...

Страница 26: ...anel or by the edges of the board align the bottom and top edges of the board with the guide slots Make sure that both of the edges of the card rest in the guide slots 2 Slide the TPXMIM Figure 3 1 into the desired slots of the MMAC card cage 3 Firmly press the module connections into the backplane Do not try to force the module into place or use the knurled knobs to draw the module into the backp...

Страница 27: ... port connection status Note TPXMIM defaults to CH B on initial power up Appropriate EPIM LEDs ON see section 3 5 Connecting to the Network to obtain the appropriate LED status for EPIMs Appropriate RCV LEDs flashing and LNK LEDs ON to show connection of individual ports SN TPXMIM 34 ETHERNET A B C CLN 1 2 3 4 5 6 7 8 9 10 11 12 RCV LNK 13 14 15 16 17 18 19 20 21 22 23 24 RCV LNK TPXMIM 20 E P I M...

Страница 28: ...ires the use of a MIB walking tool and access through a multi channel management device i e EMME EMM E6 etc In other words you must set specific MIB instances pertaining to the TPXMIM board as a whole or the individual ports You can set MIBs using a number of MIB walking tools This manual describes how to set the MIBs using the SNMP Tools screen in EMME or EMM E6 Local Management For additional in...

Страница 29: ...er the following MMAC slots increment from right to left the farthest right slot 1 contains the multichannel management module in this example the SET command takes into account the 1 3 6 1 prepend 4 Press the Return key The SNMP Tools Screen displays INteger String Null OId IP address Counter Guage Timeticks OPaque DATA TYPE name 5 Enter IN for an integer data type 6 Press the Return key The SNMP...

Страница 30: ...tions and set the MIB using the desired variable To assign an individual port 1 From the SNMP Tools screen highlight SET using the arrow keys 2 Press the Return key SNMP Tools screen displays the following SET OID F9 3 Enter the following OID string 4 1 52 1 6 1 2 3 1 1 3 MMAC Slot TPXMIM Port 0 Note Enter the number of the slot i e slot 2 3 for an MMAC 3 2 5 for an MMAC 5 or 2 8 for an MMAC 8 hol...

Страница 31: ...D DATA 7 Enter the integer for the desired Channel assignment The following table provides a Channel to integer association 8 Press the Return key If the device accepts the integer entry the SNMP Tools screen displays SET OPERATION CODE XXXX OK If the module does not accept the entry and an error message appears begin with step 1 again and re enter the information If the module still refuses to ac...

Страница 32: ...ons in this chapter to verify proper operation Caution Observe all static precautions while handling EPIMs To add replace an EPIM Note When removing an EPIM be sure to pull the module straight out so as not to damage the connector 1 Remove the coverplate or the EPIM whichever applies 2 Slide your new EPIM into place making sure the connectors on the rear of the module and inside the TPXMIM attach ...

Страница 33: ... 5 3 EPIM X 3 5 4 EPIM F1 F2 F3 3 5 5 EPIM C 3 5 6 EPIM A 3 5 7 3 5 1 Attaching a Twisted Pair Segment to the TPXMIM 20 22 The TPXMIM 20 has nine RJ45 twisted pair ports and the TPXMIM 22 has twenty one RJ45 twisted pair ports The TPXMIM 20 and TPXMIM 22 have a Polarity Correction and Detection feature which allows packets to pass even if the polarity of the twisted pair is reversed To attach twis...

Страница 34: ... 2 Attaching a Twisted Pair Segment to the TPXMIM 33 34 The TPXMIM 33 has one 50 pin Champ connector and the TPXMIM 34 has two 50 pin Champ connectors This configuration of the TPXMIM allows you to run a 50 pin feeder cable from the TPXMIM to a punch down block Each Champ connector can accommodate twelve 10BASE T twisted pair segments The TPXMIM 34 provides the option of using all twenty four 10Ba...

Страница 35: ... 3 5 2 Attach the feeder cable to the punch down block or patch panel If using a TPXMIM 34 you can connect a second 50 pin feeder cable to the module In most cases connect the feeder cable directly to a Champ connector located on the punch down block If not wire the feeder cable to the punch down block using the punch down information in Appendix A 3 At the device end of a segment attach the segme...

Страница 36: ...3 5 3 Connecting a Twisted Pair Segment to an EPIM T Before connecting a segment to the EPIM T check each end of the segment to determine wire cross over If the wires do not cross over use the switch on the EPIM T to internally cross over the RJ45 port Refer to Figure 3 6 to properly set the EPIM T cross over switch Note To establish link you must have an odd number of cross overs preferably one b...

Страница 37: ...ASE T device at the other end of the twisted pair segment is powered b Verify that the RJ45 connectors on the twisted pair segment have the proper pinouts See Figure 3 7 c Check the cable for continuity d Check that the twisted pair connection meets dB loss and cable specifications outlined in 10BASE T Twisted Pair Network Requirements Chapter 2 Figure 3 7 Cable Pinouts EPIM T RJ45 Port If you sti...

Страница 38: ...ation To connect an EPIM X to a device not requiring SQE 1 Check that the SQE LED on the EPIM X is OFF If the SQE LED is ON check the position of the SQE switch Note If the SQE light remains ON even though the SQE switch is in the OFF position contact Cabletron Technical Support 2 Attach one end of an AUI cable no longer than 50 meters in length to the port located on the EPIM X Figure 3 8 and the...

Страница 39: ...ctor inserted into the alignment slot on the port Turn the connector to lock it down The physical communication link consists of two strands of fiber optic cabling the Transmit TX and the Receive RX The Transmit strand from a module port connects to the Receive port of a fiber optic Ethernet device at the other end of the segment i e TX of the applicable port on the module goes to RX of the other ...

Страница 40: ...nds using alcohol and a soft clean lint free cloth To connect a fiber optic link segment to an EPIM F1 F2 or an EPIM F3 1 Remove the protective plastic covers from the fiber optic ports on the applicable port on the module and from the ends of the connectors on each fiber strand 2 Attach the fiber labeled 1 to the applicable receive port RX on the module See Figure 3 9 Figure 3 9 EPIM F1 F2 and EP...

Страница 41: ...t on the module and the fiber optic device at the other end of the fiber optic link segment c Verify that the fiber connection meets the dB loss specifications outlined in Fiber Optic Network Requirements Chapter 2 If you still cannot establish link contact Cabletron Technical Support 3 5 6 Connecting a Thin Net Segment to an EPIM C To connect a thin net segment to an EPIM C 1 Set the Internal Ter...

Страница 42: ...egment operation Place a terminator on any open female connection on the tee connector c Attach another thin coax segment or a terminator to the other female connector on the tee connector Figure 3 10 EPIM C Attach thin net segment directly to BNC connector when internal termination switch is set to on When internal termination switch is set to off Connect BNC tee connector to port Attach a termin...

Страница 43: ...cable transceiver manual for additional information To connect an EPIM A to an external network segment 1 Check that the PWR LED on the EPIM A is ON If the PWR LED is OFF contact Cabletron Systems Technical Support 2 Attach an external transceiver to the network segment intended for AUI port connection For additional information refer to the applicable transceiver manual 3 Attach anAUI cable no lo...

Страница 44: ... If the transceiver PWR LED is OFF with the AUI cable connected a Check the AUI connections for proper pinouts Appendix B lists the pinouts for the transceiver connection b Check the cable for continuity c Reconnect the AUI cable to the TPXMIM and the device If the transceiver PWR LED remains OFF contact Cabletron Systems Technical Support ...

Страница 45: ...2 Connect the first workstation to either the TPXMIM using the appropriate cable and transceiver or to the EMME through the active AUI port normally AUI 1 Note The EMME uses the AUI 1 port as the default active bridge port If you want to test modules using the AUI 2 port you must select that port using EMME Local Management 3 Connect the second workstation to the TPXMIM using the appropriate trans...

Страница 46: ...et up as file server and client Keep the server workstation stationary in the wiring closet with the EMME and move the client workstation to each TPXMIM node Figure 4 2 1 Connect the server workstation to either the TPXMIM using the appropriate cable and transceiver or to an EMME AUI port using a transceiver and an AUI cable 2 Connect the client workstation to each node and test the segment If fai...

Страница 47: ...ALLATION CHECK OUT TPXMIM Installation Guide Page 41 Figure 4 2 Installation Check Out EMME MMAC 3FNB TPXMIM 33 TPT File Server Workstation MMAC3 FNB with EMME and TPXMIM Office Locations Client Workstation ...

Страница 48: ...EW you can quickly scan the TPXMIM LEDs to observe network status or diagnose network problems Figure 4 3 LANVIEW LEDs TPXMIM 22 E P I M 11 12 13 14 15 16 17 18 19 20 21 22 ETHERNET A B C 11 X 12 X 13 X RCV LNK RCV LNK RCV LNK 1 2 3 4 5 6 7 8 9 10 CLN SN TPXMIM 34 E P I M ETHERNET A B C CLN 1 2 3 4 5 6 7 8 9 10 11 12 RCV LNK 13 14 15 16 17 18 19 20 21 22 23 24 RCV LNK EPIM SEL EPIM Port LEDs Chann...

Страница 49: ...o another Channel and the Ethernet LED remains OFF contact Cabletron Technical Support CLN Collision Red LED flashes to indicate the occurence of collisions on the port Collisions normally occur on an Ethernet Network Flash frequency may increase with increased network activity Excessive collisions indicate too much traffic on a segment Reduce traffic on that segment RCV Receive EPIM RCV Receive T...

Страница 50: ...nstead of 10BASE T port 13 This LED is ON only if the EPIM is selected by assigning it to a specific Ethernet Channel Select the EPIM through the use of a MIB walking tool and an MMAC see Chapter 3 If you cannot select the EPIM contact Cabletron Technical Support LNK Link Green When ON this LED indicates a port has obtained a link with the device at the other end of the attached segment This LED r...

Страница 51: ...cess to a live outlet Check that the MMAC has adequate power Some configurations especially those including FDDI modules require that the MMAC contain more than one power supply Check to see that the power supply LEDs are green Cannot assign the TPXMIM board or individual ports from in band management No link to device Refer to the Local Management Guide for the multichannel management module cont...

Страница 52: ...ed Pair Wiring From a Punch Down Block to a 10Base T Device From Punch Down Block To RJ45 Wallplate Into Office Drop Into 10BASE T Device Port 12 24 Pin Pin Pin B45 Violet Green RX 1 TX 1 TX 1 TX B46 Green Violet RX 2 TX 2 TX 2 TX B47 Violet Brown TX 3 RX 3 RX 3 RX B48 Brown Violet TX 6 RX 6 RX 6 RX Port 11 23 Pin Pin Pin B41 Violet Blue RX 1 TX 1 TX 1 TX B42 Blue Violet RX 2 TX 2 TX 2 TX B43 Viol...

Страница 53: ...k Gray RX 1 TX 1 TX 1 TX B30 Gray Black RX 2 TX 2 TX 2 TX B31 Yellow Blue TX 3 RX 3 RX 3 RX B32 Blue Yellow TX 6 RX 6 RX 6 RX Port 7 19 Pin Pin Pin B25 Black Green RX 1 TX 1 TX 1 TX B26 Green Black RX 2 TX 2 TX 2 TX B27 Black Brown TX 3 RX 3 RX 3 RX B28 Brown Black TX 6 RX 6 RX 6 RX Port 6 18 Pin Pin Pin B21 Black Blue RX 1 TX 1 TX 1 TX B22 Blue Black RX 2 TX 2 TX 2 TX B23 Black Orange TX 3 RX 3 R...

Страница 54: ... Red TX 6 RX 6 RX 6 RX Port 3 15 Pin Pin Pin B9 White Gray RX 1 TX 1 TX 1 TX B10 Gray White RX 2 TX 2 TX 2 TX B11 Red Blue TX 3 RX 3 RX 3 RX B12 Blue Red TX 6 RX 6 RX 6 RX Port 2 14 Pin Pin Pin B5 White Green RX 1 TX 1 TX 1 TX B6 Green White RX 2 TX 2 TX 2 TX B7 White Brown TX 3 RX 3 RX 3 RX B8 Brown White TX 6 RX 6 RX 6 RX Port 1 13 Pin Pin Pin B1 White Blue RX 1 TX 1 TX 1 TX B2 Blue White RX 2 T...

Страница 55: ...5 RX A46 RX A47 TX A48 TX A41 RX A42 RX A43 TX A44 TX A1 RX A2 RX A3 TX A4 TX PIN 1 TX PIN 2 TX PIN 3 RX PIN 6 RX PIN 1 TX PIN 2 TX PIN 3 RX PIN 6 RX PIN 1 TX PIN 2 TX PIN 3 RX PIN 6 RX PIN 1 TX PIN 2 TX PIN 3 RX PIN 6 RX PIN 1 TX PIN 2 TX PIN 3 RX PIN 6 RX PIN 1 TX PIN 2 TX PIN 3 RX PIN 6 RX 25 Pin Feeder Cable 25 Pin Feeder Cable 25 Pin Feeder Cable 4 Pair Twisted Distribution Cable 4 Pair Twist...

Страница 56: ...G TABLES TPXMIM Installation Guide Page 51 Figure A 1 Punch Down Block 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 A B C D ...

Страница 57: ...M T 10BASE T Twisted Pair Port Internal Transceiver Cabletron Systems TPT 10BASE T Twisted Pair Transceiver Type 8 Pin RJ45 Jack Fig B 1 Figure B 1 EPIM T with RJ45 Port A slide switch on the EPIM T determines the cross over status of the cable pairs The switch residing on the X side indicates the pairs internally cross over If the switch resides on the side the pairs do not internally cross over ...

Страница 58: ...e Fiber Optic Port Internal Transceiver Cabletron Systems FOT F Fiber Optic Transceiver Type EPIM F1 SMA fiber optic ports Fig B 3 EPIM F2 ST fiber optic ports Fig B 3 Figure B 3 EPIM F1 and EPIM F2 Position not crossed over 1 TX 2 TX 3 RX 4 NC 5 NC 6 RX 7 NC 8 NC Position X crossed over 1 RX 2 RX 3 TX 4 NC 5 NC 6 TX 7 NC 8 NC ...

Страница 59: ...r Levels with an Average Power Meter you must subtract 3 dBm from the measurement to correctly compare measured values to the above values e g 29 5 dBm peak 32 5 dBm average EPIM F3 SINGLE MODE FIBER OPTIC PORT Internal Transceiver Cabletron Systems FOT F3 Fiber Optic Transceiver Type ST fiber optic ports Fig B 4 Figure B 4 EPIM F3 Receive Sensitivity 29 5 dBm Max Receive Power 8 2 dBm Transmitter...

Страница 60: ...uals 16 4 dBm For a 4ºC temperature increase multiply the typical coefficient 0 15 dBm by four and add the result to typical output power 4 x 0 15 dBm 16 4 dBm 17 0 dBm Parameter Typical Minimum Maximum Transmitter Peak Wave Length 1300 nm 1270 nm 1330 nm Spectral Width 60 nm 100 nm Rise Time 3 0 ns 2 7 ns 5 0 ns Fall Time 2 5 ns 2 2 ns 5 0 ns Duty Cycle 50 1 49 6 50 7 TX Power 15 1 dBm TX Budget ...

Страница 61: ...are those measured values to the values listed above e g 29 5 dBm peak 32 5 dBm average EPIM C BNC PORT Internal Transceiver Cabletron Systems TMS 3 Transceiver Type BNC receptacle with gold center contact for use with BNC type tee connectors and RG 58 thin net cable Fig B 5 Figure B 5 EPIM C with BNC Port Termination Using the switch to the side of the port you can internally terminate the port o...

Страница 62: ...point could produce dangerous ground currents EPIM A AND EPIM X AUI PORT Interface Connector DB 15 Port female connector for EPIM A male connector for EPIM X Fig B 6 Type 15 position D type receptacle Figure B 6 EPIM A and EPIM X AUI Port Connector Shell Protective Ground Pin 1 Logic Ref Pin 9 Collision 2 Collision 10 Transmit 3 Transmit 11 Logic Ref 4 Logic Ref 12 Receive 5 Receive 13 Power 12 Vd...

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