ST-500 ETHERNET/IEEE 802.3 TRANSCEIVER WITH LANVIEW INSTALLATION GUIDE CABLETRON SYSTEMS, P. O.
NOTICE Cabletron Systems reserves the right to make changes in specifications and other information contained in this document without prior notice. The reader should in all cases consult Cabletron Systems to determine whether any such changes have been made. The hardware, firmware, or software described in this manual is subject to change without notice.
FCC NOTICE This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules.
VCCI NOTICE 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 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.
TABLE OF CONTENTS CHAPTER 1 INTRODUCTION 1.1 ST-500 Features ............................................................................ 1-1 1.1.1 LANVIEW LEDs ............................................................. 1-3 1.1.2 Heartbeat (SQE) Test .................................................... 1-3 1.2 Getting Help ................................................................................... 1-4 CHAPTER 2 INSTALLATION 2.1 2.2 2.3 2.4 2.5 Unpacking the ST-500 Transceiver...............
CHAPTER 1 INTRODUCTION Welcome to the Cabletron Systems’ ST-500 Ethernet/IEEE 802.3 Transceiver with LANVIEW Installation Guide. This guide provides installers and service technicians with information required to install and, if necessary, diagnose network problems. Prior to installing and operating the ST-500 transceiver, read through this manual completely to become familiar with its content and to gain an understanding of the ST-500 features. A general working knowledge of Ethernet/802.
CHAPTER 1: INTRODUCTION The type of tap provided with the transceiver body defines one of four models of the ST-500 transceiver.
ST-500 Features 1.1.1 LANVIEW LEDs The ST-500 transceiver has five LANVIEW LEDs that monitor network activity (transmit, receive and collision present), power status, and heartbeat (SQE) test status. These LEDs are described in Table 1-1. They serve as a useful tool to quickly diagnose physical layer problems. Table 1-1. LANVIEW LEDs LED DESCRIPTION PWR Power - On when the transceiver is receiving power from the attached node.
CHAPTER 1: INTRODUCTION 600 ns TO 1600 ns TRANSMIT 500 ns TO 1500 ns COLLISION Figure 1-2. Collision Test Signal Timing 1.2 Getting Help If there is any additional support needed for the ST-500 transceiver 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. EST By CompuServe: GO CTRON from any ! prompt By Internet mail: support@ctron.
CHAPTER 2 INSTALLATION This chapter provides instructions for installing the three types of taps supported by the ST-500 transceiver (see Figure 1-1). After unpacking the transceiver and configuring the Heartbeat (SQE) test switch, perform the tap installation procedure that is applicable to the transceiver model. 2.
CHAPTER 2: INSTALLATION 2.3 Installation Site To install the ST-500 transceiver, a minimum area of 17.8-cm (7-in) high by 20.3-cm (8-in) wide by 10.2-cm (4-in) deep is recommended to provide enough space for the transceiver, tap, and Attachment Unit Interface (AUI) cable connections. Ensure that the installation site meets the environmental conditions specified in Appendix A. 2.
Installing the Transceiver Tap Once the power is on at the host system, the SQE LED will be lit on each transceiver that has the heartbeat feature enabled. Conversely, the LED is not lit on the transceivers with the heartbeat disabled. Caution: Earlier transceiver models used a jumper for this setting. Do not install a jumper to enable SQE. Damage can result if a jumper is installed in a transceiver equipped with an SQE switch. 2.
CHAPTER 2: INSTALLATION PRESSURE SCREW ETHERNET COAXIAL CABLE CLAMP SECTION BRAID PICKS CABLE BED SECTION CENTER PROBE PWR SQE XMT RCV CLN FLAT-HEAD SCREWS Figure 2-2.
Installing the Transceiver Tap 2. Insert the braid picks into the holes in the cable bed as shown in Figure 2-3. BRAID PICKS CABLE BED SECTION HOLES Figure 2-3. Installing the Braid Picks 3. Determine the location for the tap on the coaxial cable. (Some cables are marked at 2.5-meter (8.2-feet) intervals to indicate tap locations.) Position the cable over the braid picks in the cable bed section (see Figure 2-4). Slide the clamp into the guide slots on the cable bed. 4.
CHAPTER 2: INSTALLATION 5. Drill a hole in the cable for the center probe. Insert the drill end of the hand coring tool into the center hole and apply pressure while twisting the coring tool clockwise (see Figure 2-5). When the coring tool turns freely, remove the coring tool. (The coring tool has a stop to prevent over-drilling.) Remove debris by holding the tap with the cable bed facing down and tapping lightly on the side of the tap. Do not blow into the hole to remove debris.
Installing the Transceiver Tap CENTER PROBE CABLE BED CORING TOOL Figure 2-6. Installing the Center Probe 7. With the center probe installed, the transceiver case can be attached to the tap. Remove the two flat-head screws from the transceiver case and insert the tap into the rectangular opening in the case. Make sure the tap pins are aligned with the connector block on the transceiver circuit board. Caution: Avoid forcing the tap into the case. Very little force is needed.
CHAPTER 2: INSTALLATION TAP ASSEMBLY CONNECTOR BLOCK TRANSCEIVER CASE PWR SQE XM T RCV CLN FLAT-HEAD SCREWS Figure 2-7. Installing the Tap 9. Check the tap using an ohmmeter. The dc resistance between the center probe and the braid should read approximately 25 ohms. For more comprehensive testing of the transceiver and transceiver tap, use a Cabletron Systems LAN-MD Transceiver and Cable Tester. 10. The transceiver is now ready to be connected to the host system cable. Proceed to Section 2.6. 2.5.
Installing the Transceiver Tap require cutting the network cable and installing male-mating connectors to attach the transceiver. A barrel (female to female) connector is used to provide network cable continuity when the transceiver is not installed. . N-SERIES FEMALE-TO-FEMALE BARREL CONNECTOR BNC FEMALE-TO-FEMALE BARREL CONNECTOR PWR SQE XMT RCV CLN ST-500-2 TRANSCEIVER WITH N-SERIES (INTRUSIVE) ETHERNET TAP PWR SQE XMT RCV CLN ST-500-3 TRANSCEIVER WITH BNC THIN-NET TAP Figure 2-8.
CHAPTER 2: INSTALLATION TAP ASSEMBLY CONNECTOR BLOCK TRANSCEIVER CASE PWR SQE XMT RCV CLN FLAT-HEAD SCREWS Figure 2-9. Installing the Tap 2. Insert and tighten the flat-head screws (see Figure 2-9). 3. Test the transceiver and transceiver tap using a Cabletron Systems LAN-MD Transceiver and Cable Tester. 4. Select a location for the transceiver and note the following: a.
Connecting the Transceiver to the Host 2.6 Connecting the Transceiver to the Host The ST-500 Transceiver is designed to operate with Ethernet Version 1.0, Version 2.0, and IEEE 802.3 compliant systems. However, each version requires different wiring for the transceiver cable. Since cable grounding is accomplished at the host end of the cable, the correct cable must be used according to the requirements of the host equipment. 1.
CHAPTER 2: INSTALLATION 2.7 Checking the Installation Power up the host system. The LANVIEW LEDs on the transceiver indicate normal operation as described in Table 2-1. Table 2-1.
CHAPTER 3 TROUBLESHOOTING This chapter provides troubleshooting information based on the condition of the LANVIEW LEDs on the transceiver. The troubleshooting information consists of some of the most common potential problems and solutions. If a problem persists after performing the recommended corrective actions, contact Cabletron Systems Technical Support. 3.1 LANVIEW LEDs The condition of the LANVIEW LEDs provides valuable troubleshooting information about how the system is operating.
CHAPTER 3: TROUBLESHOOTING Table 3-1 lists the more common error conditions displayed on the LANVIEW LEDs along with the probable cause and recommended corrective action. Table 3-1. Troubleshooting Guide Probable Cause Corrective Action Condition 1 - No LANVIEW LEDs lit 1. Transceiver cable is disconnected. Connect the transceiver cable. 2. Host powered-off. Turn on power to the host. Condition 2 - PWR on, XMT and RCV off, and CLN on steadily 1. Open tap.
Troubleshooting Table 3-1. Troubleshooting Guide (Cont’d) Probable Cause Corrective Action Condition 3 - PWR on, XMT, RCV, and CLN on (simultaneously). Note: This is a normal condition if SQE is enabled and the host is transmitting. 1. Intermittent tap connection or open coaxial cable. Check other stations for the same condition. Check the transceiver tap installation. Check for improperly terminated or cut cable. 2. Wrong transceiver cable installed. Check cable wiring (V1.0, V2.0, or IEEE 802.3).
APPENDIX A ST-500 TRANSCEIVER SPECIFICATIONS This appendix provides the specifications for the ST-500 Transceiver. A.1 Receiver Specification Item Typical Value Worst Case Leakage Current: 0 µA -0.5 to +0.5 µA Input Impedance: >3.8 MΩ >1.9 MΩ Coax Cable Tap Capacitance: 3.7 pF 3.9 pF Delay Time (Input to Output): Turn-On Steady-State 180 ns 11.2 ns 300 ns 19.0 ns DI Rise/Fall Time: 2.8 ns 4.0 ns DI Output Voltage: +/- 855 mV +/- 810 to +/- 920 mV A.
APPENDIX A: ST-500 TRANSCEIVER SPECIFICATIONS Item Typical Value Worst Case Delay Time (Input to Output): Start-Up Steady-State 150 ns 26.9 ns 175 ns 30.1 ns Signal Spectrum Harmonic: Second and Third Fourth and Fifth Sixth and Seventh Higher -24.2 dB -35.7 dB -56.3 dB -55.4 dB -19.3 dB -32.0 dB -48.3 dB -52.3 dB Input Impedance: Differential Common-mode 80.3 Ω > 20.0 Ω 79.4 to 81.
Power Specification Typical Value Item Collision DC Threshold: Worst Case -1566 mV -1510 to 1591 mV 800 ns 752 ns 731 to 864 ns 709 to 812 ns +/- 855 mV +/- 790 to +/- 930 mV 28.8 ms 400 ms 26.7 to 29.6 ms 400 to 600 ms Interframe Test Signal (optional): Delay Duration Output Voltage: Jabber Control: Time-out Reset Time A.4 Power Specification Typical Value Item Worst Case Input Voltage: 12 Vdc 9.5 to 15.
APPENDIX A: ST-500 TRANSCEIVER SPECIFICATIONS A.5 Interface Connector Pinout Identification Pin Description Pin Description 1 Logic Ref. 9 Collision – 2 Collision + 10 Transmit – 3 Transmit + 11 Logic Ref. 4 Logic Ref. 12 Receive – 5 Receive + 13 Power (+12 Vdc) 6 Power return 14 Logic Ref. 7 N/C 15 N/C 8 Logic Ref. Note: The shell is connected to the cable shield and case. The ST-500 transceiver is compliant with the IEEE 802.
Environmental Specifications A.6 Environmental Specifications Non-Operating Temperature: -20° C (-4° F) to +90° C (194° F) Operating Temperature: 5° C (40° F) to 40°C (104° F) Operation Humidity: 5 to 95% non-condensing Note: The ST-500 transceiver meets all federal, state, and city standards for use in air plenums.
APPENDIX A: ST-500 TRANSCEIVER SPECIFICATIONS A.7 Service Specification MTBF (MHBK-217D): 652,315 hrs. (calculated) MTTR: <.25 hr. A.8 Physical Specification The following dimensions and weight are for the transceiver (ST-500-00) without the optional tap. Height: 7.0 cm (2.75 in) Width: 8.8 cm (3.46 in) Depth: 4.5 cm (1.
