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MAY 1995
ME758C-RJ11
ME758C-RJ45
ME759C-RJ11
ME759C-RJ45
Multi-Function LD Cards
CUSTOMER
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
SUPPORT
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
INFORMATION Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com
Power
TD
RD
RTS
CD
Error
Test
Analog
Remote
511/E 511
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FCC STATEMENTS FEDERAL COMMUNICATIONS COMMISSION AND INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio-frequency energy, and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication. It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart B of Part 15 of FCC rules, wh
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MULTI-FUNCTION LD CARD NORMAS OFICIALES MEXICANAS (NOM) ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura. 3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben ser respetadas. 4. Todas las instrucciones de operación y uso deben ser seguidas. 5. El
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NOM STATEMENTS 12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada. 13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos, poniendo particular atención a los contactos y receptáculos donde salen del aparato. 14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las recomendaciones del fabricante. 15. En caso de existir, una antena ex
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MULTI-FUNCTION LD CARD Contents Chapter Page 1. Specifications ............................................................................................. 5 2. Introduction ............................................................................................... 8 2.1 Overview .............................................................................................. 8 2.2 Features ............................................................................................... 8 3.
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CHAPTER 1: Specifications 1. Specifications Hardware Required — Cards can be installed only in MicroRacks (see Section 4.1) Cable Required — For modem-to-modem line: Two- or four-wire unconditioned twisted-pair, 19 to 26 AWG (see the Appendix), pinned as shown in Section 4.5 Compliance — FCC Part 15 Class A, DOC Class/MDC classe A Interfaces — Serial: ME758C models: EIA/TIA-561 (compatible with EIA RS-232 and ITU-TSS [CCITT] V.24); ME759C models: EIA RS-232/ITU-TSS V.24 Line: Two- or four-w
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MULTI-FUNCTION LD CARD Data Rates — 57.6, 38.4, 28.8, 19.2, 14.4, 9.6, 7.2, 4.8, 3.6, 2.4, or 1.2 kbps (user-selectable) Maximum Distance — See the maximum distance chart in the Appendix Isolation — 1500 volts RMS minimum using custom transformers Surge-Protection Method — Silicon Avalanche Diodes Surge-Response Time — 1 ps Maximum Surge Protection — 600 watts dissipated after 1 ms User Controls — (2) Front-panel toggle switches: Remote or (local) Analog loopback; 511 or 511/E V.52 diagnostics;
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CHAPTER 1: Specifications (1) 50-position card-edge male (to MicroRack); On interface module: All models: (1) 50-position card-edge male (to MicroRack); ME758C-RJ11: (1) 6-pin RJ-11 female for modem-to-modem line, (1) DB25 female for modem-to-DTE line; ME758C-RJ45: (1) RJ-45 female for modem-to-modem line, (1) DB25 female for modem-to-DTE line; ME759C-RJ11: (1) 6-pin RJ-11 female for modem-to-modem line, (1) 10-pin RJ female for modem-to-DTE line; ME759C-RJ45: (1) RJ-45 female for modem-to-mod
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MULTI-FUNCTION LD CARD 2. Introduction 2.1 Overview The Multi-Function LD Card is a short-range modem on a dual rack card (it has a main [front] module and an interface [rear] module). The Card operates across two wires (half-duplex) or four wires (full- or half-duplex), communicating synchronously or asynchronously, up to a maximum range of 20 miles (32.2 km). You can set the Card to any of twelve data rates from 1.2 to 57.6 kbps. Local and remote modems on Multi-Function LD Cards always commun
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CHAPTER 2: Introduction • Internal, external, or received loopback clocking • Hardware or software flow control • Automatic equalization and gain control • Anti-streaming timer • Built-in transformer isolation and high-speed surge protection • V.52 and V.54 test modes • Eleven LED indicators show you status at a glance • Error LED lights when Card detects broken or inferior cable 9
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MULTI-FUNCTION LD CARD This chapter describes the locations and posssible settings of the Multi- Function LD Card’s configuration controls, and provides detailed instructions for setting them. Section 3.1 tells you about the three 8-position DIP switches on the Card’s main (front) module. Section 3.2 tells you about the three jumpers (“straps”) on the Card’s interface (rear) module. Once you’ve configured the Multi-Function LD Card, it is designed to operate transparently, without needing to be
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CHAPTER 3: Configuration ON ON 123456 7 8 OFF Figure 3-2. The ON and OFF settings of the DIP switches. 3.1.2 CONFIGURATION SWITCH “S1” Use the individual positions on DIP switch S1 to set data rate, clock source, sync vs. async protocol, and carrier-control method. The factory-default settings are summarized in Table 3-1 below. Table 3-1. Switch S1 Summary Position Function Default Setting S1-1 Data Rate On S1-2 Data Rate Off 9600 bps S1-3 Data Rate Off S1-4 Data Rate On S1-5 Clock Source On In
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MULTI-FUNCTION LD CARD S1 Positions 1 through 4: Data-Rate Setting Set positions 1 through 4 of switch S1 to determine the data rate (valid for both synchronous and asynchronous protocols) of the Multi-Function LD Card. S1-1 S1-2 S1-3 S1-4 Data Rate On On On On 1.2 kbps Off On On On 1.8 kbps On Off On On 2.4 kbps Off Off On On 3.6 kbps On On Off On 4.8 kbps Off On Off On 7.2 kbps On Off Off On 9.6 kbps (default) Off Off Off On 14.4 kbps On On On Off 19.2 kbps Off On On Off 28.8 kbps On On Off Of
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CHAPTER 3: Configuration S1 Position 8: Carrier-Control Method Set position 8 of switch S1 to determine whether the carrier is “constantly on” or “controlled by RTS.” In the “controlled by RTS” setting, the Switch can support switched-carrier, multipoint, or hardware flow-control applications. S1-8 Carrier Off Constantly ON (default) On Controlled by RTS 3.1.3 CONFIGURATION SWITCH “S2” Use the individual positions on DIP switch S2 to set word length, signaling- rate range, RTS/CTS delay, or 2-
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MULTI-FUNCTION LD CARD S2 Position 3: V.52 and V.54 Diagnostic Testing To reset the V.54 circuit, turn switch S2 position 3 ON, then back OFF. S2-3 Test Mode Off Normal Operation (default) On Test Disabled S2 Positions 4 and 5: RTS/CTS Delay Set positions 4 and 5 of switch S2 to determine the amount of time the Multi- Function LD Card waits after it “sees” RTS before it sends CTS. Possible settings are no delay, 7 ms, or 53 ms. S2-4 S2-5 RTS/CTS Delay On On 7 ms (default) On Off 53 ms Off On No
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CHAPTER 3: Configuration 3.1.4 CONFIGURATION SWITCH “S3” Use the individual positions on DIP switch S3 to set antistream control, receive (input) impedance, and point-to-point/multipoint, as well as to enable or disable local and remote loopbacks. The factory-default settings are summarized in Table 3-3 below. Table 3-3. Switch S3 Summary Position Function Default Setting S2-1 Input Impedance On 200 ohms S2-2 Input Impedance Off S2-3 Reserved N/A S2-4 Pt.-to-Pt./Multipoint On Point-to-Point S2-
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MULTI-FUNCTION LD CARD Table 3-4. Recommended Impedance Settings Cable Data Rates in kbps Gauge 1.2 1.8 2.4 3.6 4.8 7.2 9.6 14.4 19.2 28.8 38.4 57.6 19 320 320 200 200 200 200 200 130 130 130 130 130 22 320 320 320 200 200 200 200 200 130 130 130 130 24 320 320 320 320 200 200 200 200 200 130 130 130 26 320 320 320 320 320 200 200 200 200 200 130 130 S3-4: Mode Selection Set position 4 of switch S3 to determine whether the Multi-Function LD Card operates in point-to-point or multipoint mode. S3-
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CHAPTER 3: Configuration S3-7 and S3-8: Antistream Control Set positions 7 and 8 of switch S3 to determine the timeout period for the Multi-Function LD Card’s antistream-control timer, or to disable the timer entirely. S3-7 S3-8 Setting Off Off Disabled (default) Off On 12.5 seconds On Off 50 seconds On On 12.5 seconds 3.2 Setting the Jumpers on the Interface Module 3.2.1 THE INTERFACE-MODULE OPTIONS The Multi-Function LD Card has four interface-module options: • The ME758C-RJ11 has a DB25 con
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MULTI-FUNCTION LD CARD Figure 3-3, below, shows the rear panels of each of these interface modules. ME759C-RJ11 ME758C-RJ11 ME758C-RJ45 ME759C-RJ45 Line: RJ-45 Line: RJ-11 Line: RJ-45 Line: RJ-11 Serial: DB25 Serial: DB25 Serial: 10-Pin RJ Serial: 10-Pin RJ Figure 3-3. The four interface modules. Before you install the Card, you should examine the interface module you have selected and make sure that it is configured for your application. Each interface module has three jumpers on its circuit bo
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CHAPTER 3: Configuration 3.2.3 WHERE THE JUMPERS ARE Figure 3-5, below, shows the locations of the jumpers on the interface modules (the locations are the same for both the -RJ11 and -RJ45 models). These jumpers determine various grounding and signal characteristics for the serial and modem-to-modem lines. JB2 JB3 (peg 1 on left) (peg 1 on top) ME758C interface module JB4 (peg 1 on left) JB2 (peg 1 on top) JB3 ME759C interface (peg 1 on top) module JB4 (peg 1 on left) Figure 3-5. The jumper loc
