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An Overview of the CTP100T Adapter

CTP100T USER’S MANUAL

Page 1-3

➊

Power Receptacle

➍

Termination Switch

➋

RJ45 Port

➎

BNC Port

➌

LANVIEW LEDs

Figure 1-1. CTP100T Adapter

1.3.1

Connections

The CTP100T adapter has an RJ45 port and a BNC port. The twisted
pair segment is connected to the CTP100T RJ45 port. The thin-net
segment connects to the BNC port, either directly, if terminating the
segment internally, or with a T-connector, if terminating the segment
externally.

CTP100T

10BASE-2 TO 10BASE-T ADAPTER
WITH LANVIEW

LNK

PW

XMT

RC

CLN

SN

➋

➊

➌

➍

➎

POWER INPUT

10 - 15 V

800 mA MAX

91 SERIES

01242-01

LEFT

SIDE VIEW

RIGHT

SIDE VIEW

FRONT VIEW

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Содержание CTP100T

Страница 1: ...CTP100T COAXIAL TO TWISTED PAIR 10BASE T MEDIA ADAPTER USER S MANUAL CABLETRON SYSTEMS P O Box 5005 Rochester NH 03866 5005 ...

Страница 2: ...G BUT NOT 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 August 1995 by Cabletron Systems Inc P O Box 5005 Rochester NH 03866 5005 All Rights Reserved Printed in the United States of America Part Number 9030124 02 August 1995 CTP100...

Страница 3: ...unications 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 s authority to operate the equipment DOC NOTICE This digital apparatus doe...

Страница 4: ... the standards set by the Voluntary Control Council for Interference by Information Technology Equipment VCCI 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 etc Read the instructions for correct handling ...

Страница 5: ...ection and Correction 1 4 1 3 5 LANVIEW LEDs 1 5 1 3 6 Application 1 6 1 4 Related User Manuals 1 8 1 5 Getting Help 1 8 CHAPTER 2 INSTALLATION REQUIREMENTS 2 1 Network Design Guidelines 2 1 2 1 1 Twisted Pair Requirements 2 1 2 1 2 Coaxial Requirements 2 3 CHAPTER 3 INSTALLATION 3 1 Unpacking 3 1 3 2 Installation 3 2 3 2 1 Surface Mounting the CTP100T Adapter 3 2 3 2 2 Connecting to the Network 3...

Страница 6: ... USER S MANUAL APPENDIX A SPECIFICATIONS A 1 Interface Connectors A 1 A 2 System Characteristics A 2 A 3 Power Specifications A 2 A 4 Environmental Specifications A 3 A 5 Service Specifications A 3 A 6 Physical Specifications A 4 ...

Страница 7: ...this manual thin net coaxial is also referred to as thin net Read this manual thoroughly to gain a full understanding of the CTP100T adapter and its capabilities 1 1 Who Should Use This Manual This manual is for Cabletron Systems service personnel or other qualified service personnel who are familiar with the installation of network devices and for system managers and others who perform system man...

Страница 8: ...ace and connect it to a network Chapter 4 Testing and Troubleshooting describes the CTP100T adapter installation checkout procedure and the LANVIEW LEDs and their function Appendix A Specifications provides the specifications for the CTP100T adapter 1 3 An Overview of the CTP100T Adapter The CTP100T adapter Figure 1 1 is a combination of Cabletron Systems TPT and ST 500 transceivers that can conve...

Страница 9: ...J45 port and a BNC port The twisted pair segment is connected to the CTP100T RJ45 port The thin net segment connects to the BNC port either directly if terminating the segment internally or with a T connector if terminating the segment externally CTP100T 10BASE 2 TO 10BASE T ADAPTER WITH LANVIEW LNK PW XMT RC CLN SN POWER INPUT 10 15 V 800 mA MAX 91 SERIES 01242 01 LEFT SIDE VIEW RIGHT SIDE VIEW F...

Страница 10: ...the thin net segment The receive function of the CTP100T adapter is disabled when data is either being transmitted on the thin net segment or when a collision is detected on the thin net segment When a collision is detected a jam signal is generated and sent out to the twisted pair segment 1 3 4 Polarity Detection and Correction The CTP100T adapter incorporates a Polarity Detection and Correction ...

Страница 11: ... end of the twisted pair segment This LED flashes when the polarity is reversed on the twisted pair segment receive link Regardless of this condition the CTP100T adapter passes the data on to the twisted pair segment receive link However the segment should be removed from the module and the wiring corrected to avoid future problems CLN red Collision Present On when there is a jabber condi tion Thi...

Страница 12: ...be part of the building distribution wiring running into a distribution closet and connected either directly or through a punchdown block to a Cabletron Systems hub Referring to Figure 1 2 assume that in this configuration a 10BASE T twisted pair network is set up using the existing twisted pair cable to eliminate the cost of pulling cables The CTP100T adapter is used to make the connection betwee...

Страница 13: ...net coaxial segment or add a thin net coaxial segment to an unshielded 10BASE T twisted pair network in an area where shielded cabling may be needed Coaxial Backbone Twisted Pair Wire AUI Cable CTP100T Adapter MMAC 3 with Coaxial Segment TPMIM 22 PC with Coaxial Interface Figure 1 2 Typical CTP100T Setup 01242 02 T T ...

Страница 14: ...ceiver User s Manual ST 500 Ethernet IEEE 802 3 Transceiver With LANVIEW Installation Guide LAN MD Ethernet Tester User s Manual 1 5 Getting Help If there is any additional support needed for the CTP100T adapter or if there are any questions comments or suggestions related to this manual contact Cabletron Systems Technical Support By Phone 603 332 9400 Monday through Friday 8 A M to 8 P M Eastern ...

Страница 15: ...rements are as follows Length The IEEE 802 3 10BASE T standard requires that 10BASE T transceivers transmit over a 100 meter link using 24 AWG unshielded twisted pair wire This standard specifies no maximum link length As a general rule links up to 150 meters 492 feet long are achievable for unshielded and shielded twisted pair cable Shielded cable distances are shorter dependent on signal loss me...

Страница 16: ...bol interference and reflections can cause jitter in the bit cell timing resulting in data errors A 10BASE T link must not generate more than 5 0 ns of jitter If your cable meets the impedance requirements for a 10BASE T link jitter should not be a concern Delay The maximum propagation delay of a 10BASE T link segment must not exceed 1000 ns This 1000 ns maximum delay limits the maximum link segme...

Страница 17: ... 50 ohm RG 58 A U type coaxial cable must be used when making up thin net cable segments The thin net cable segment connected to the BNC port on the CTP100T adapter must be no longer than 100 meters 330 feet in total length The far end of the thin net cable segment must have a 50 ohm terminator A maximum of 10 nodes may be connected to a thin net coaxial segment on the CTP100T adapter These taps m...

Страница 18: ... CTP100T adapter either directly or via a T connector The BNC port has an external switch for selecting the termination Place the switch in the position to terminate the adapter internally or in the position when terminating externally Note Both ends of a 10BASE 2 thin net cable segment must have a 50 ohm termination for proper operation ...

Страница 19: ...er a 12 Vdc 800 mA power supply and a plastic accessory bag from the shipping box Save the packing materials in case the unit needs to be reshipped 2 Remove the CTP100T adapter from the packing material and its protective plastic bag Set the unit aside to prevent it from being damaged 3 Remove the 12 Vdc 800 mA power supply from its box Set the unit aside to prevent it from being damaged 4 Check t...

Страница 20: ...ect the coaxial segment to the adapter Is within 6 feet of an appropriate power source such as a USA standard NEMA 3 prong outlet The power source needed is dependent on the power supply shipped with the CTP100T adapter Has a smooth clean surface that accepts the adhesive bonding of the Velcro mount Mount the CTP100T adapter as follows 1 Separate the two part 1 5 inch by 3 inch Velcro mount 2 Peel...

Страница 21: ...n Take care not to cut any network or telephone lines during installation Failure to do so may result in interruption of data and or telephone service 2 Refer to Figure 3 1 Connect the twisted pair cable to the CTP100T adapter by inserting the RJ45 connector into the RJ45 port on the side of the CTP100T adapter 3 Attach the thin net coaxial segment to the BNC port of the CTP100T adapter Set the In...

Страница 22: ...ation Switch Power Cord CTP100T Adapter Power Supply Figure 3 1 Installation 4 Plug the power cord into the power receptacle located on the side of the CTP100T adapter 5 Plug the power supply into the wall outlet 91 SERIES CTP100T 10BASE 2 TO 10BASE T ADAPTER WITH LANVIEW LNK PWR XMT RCV CLN SN POWER INPUT 10 15 V 800 mA MAX 01242 03 ...

Страница 23: ...e If the LNK LED is off perform the following steps until it turns on a Ensure that the device attached to the twisted pair cable segment is powered up b Disconnect the RJ45 connector from the RJ45 port of the CTP100T adapter c Check that the RJ45 connector at each end of the twisted pair cable has the proper pinouts and that each connector is crimped properly d Using a continuity checker verify t...

Страница 24: ...Support 8 Relieve the strain on all cable connections and the power cord connection using the cable ties shipped with the CTP100T adapter Before transmitting data through the CTP100T adapter check the instal lation as described in Chapter 4 Testing and Troubleshooting to en sure that the CTP100T adapter is properly connected to the network and that it is operating properly ...

Страница 25: ...alled to ensure that the physical layer of the network is op erating properly For the procedures in this section you need two Ethernet node testers capable of generating valid data packets such as Cabletron Systems LAN MD and a Cabletron Systems 10BASE T Twisted Pair Transceiv er such as the TPT TPT T or the TPT 4 To test the CTP100T adapter refer to Figure 4 1 and proceed as follows 1 Connect a L...

Страница 26: ...Page 4 2 CTP100T USER S MANUAL LAN MD CTP100T Adapter AUI Cable Thin net Coax Segment 10BASE T Twisted Pair Thin net Coax Transceiver Segment TPT AUI Cable Crossed Over Twisted LAN MD Pair Segment Figure 4 1 Checkout Configuration 01242 04 ...

Страница 27: ...D will now act as the SERVER unit It will also act as a packet echoer when it is used with another LAN MD Press the Start Test button The test passes when the status display on the LAN MD reads 000 and the LAN MD pass LED comes on 7 On the LAN MD that was connected in step 5 select 4 NODE and press the Start Test button Check that this test passes At least 100 packets should be sent and received w...

Страница 28: ...ng system LANVIEW LANVIEW LEDs are more ef fective than a network monitor because networking personnel can quick ly scan the LEDs to diagnose network problems and to determine which node or segment is faulty The following discusses the function and purpose of each CTP100T LANVIEW LED shown in Figure 4 2 Figure 4 2 LANVIEW LEDs LNK PW XMT RC CLN SN LEDs 91 SERIES TERM 01242 05 ...

Страница 29: ...data until the link is restored by receiving a correct link test pulse or a valid packet If the polarity is reversed on the twisted pair seg ment receive link the Link LED flashes indicating that this condition ex ists The segment should be removed from the module and the wiring corrected Receive RCV LED This yellow LED flashes when the CTP100T adapter receives a data packet from the coaxial segme...

Страница 30: ... collision con dition The frequency of the flashes may increase as network activity in creases since more collisions are likely to occur The flash of the LED is pulse stretched for viewing effect A solid light indicates a jabber condition Power PWR LED When this green LED is on the CTP100T adapter is receiving power from the external wall transformer ...

Страница 31: ...T Twisted Pair Transceiver Connector Type RJ45 Pinout Assignment see Figure A 1 Figure A 1 RJ45 Port Pinout BNC Interface Internal Transceiver Cabletron Systems ST 500 Transceiver Connector Type BNC receptacle with gold contact for use with BNC type plugs and RG 58 A U thin net coaxial cable Pin 1 Pin 1 TX Pin 2 TX Pin 3 RX Pin 4 No Connection Pin 5 No Connection Pin 6 RX Pin 7 No Connection Pin 8...

Страница 32: ...roducts built before 1987 cannot operate when the jitter levels exceed 14 ns Therefore the CTP100T may not provide error free operation in all Ethernet environments A 3 Power Specifications Depending on the CTP100T adapter order one of the following power supplies is included in the shipment Power Supply Domestic Version Input Voltage 100 to 125 Vac 60 Hz Output Voltage 12 Vdc 0 5Vdc Output Curren...

Страница 33: ...s the responsibility of the person who sells the system that includes the CTP100T adapter to ensure that the total system complies with the allowable limits of conducted and radiated emissions Immunity The CTP100T adapter meets the immunity requirements of EN50082 1 IEC 801 2 IEC 801 3 and IEC 801 4 A 5 Service Specifications Non Operating Temperature 30 C 22 F to 80 C 176 F Operating Temperature ...

Страница 34: ...Page A 4 CTP100T USER S MANUAL A 6 Physical Specifications CTP100T adapter Height 8 38 cm 3 3 in Width 13 46 cm 5 3 in Depth 2 28 cm 0 9 in Weight 0 18 kg 0 4 lb Transformer weight 0 39 kg 0 85 lb Shipping weight 0 86 kg 1 9 lb ...

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