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26

• The green “PWR” LED glows when power is being applied to the

modem card through its mid-plane chassis connection.

• The green “TD” and “RD” LEDs blink to show positive state data

activity. The red “TD” and “RD” indicators blink to show negative state
data activity. A solid red light indicates an idle state.

• If your carrier-detect strap is configured as “Always On,” the “CD” LED

will always be green. If the carrier-detect strap is set to “Normal,” the
green LED lights when the carrier is on; the red LED lights when the
carrier is off.

5.2  Power-Up

There is no power switch on the Async 232

↔

422/530 Card: Power is

automatically applied to the Async 232

↔

422/530 Card when its card-edge

connector touches the chassis’s mid-plane socket, or when the chassis’s power
is turned on.

NOTE

The Async 232

↔

422/530 Card is a hot-swappable card—it will not be

damaged by plugging it in or removing it while the rack is powered up.

CHAPTER 5: Operation

Содержание Async 232 422/530

Страница 1: ...BBOX FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mail order Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com NOVEMBER 1996 IC474C IC475C Async 232 422 530 Card Power TD RD CD Unit A TD RD CD Unit B ...

Страница 2: ...rence in which case the user at his own expense will be required to take whatever measures may be necessary to correct the interference Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment This digital apparatus does not exceed the Class A limits for radio noise emission from digital apparatus set out in th...

Страница 3: ...amente con carritos o pedestales que sean recomendados por el fabricante 7 El parato eléctrico debe ser montado a la pared o al techo sólo como sea recomendado por el fabricante 8 Servicio El usuario no debe intentar dar servicio al equipo eléctrico más allá a lo descrito en las instrucciones de operación Todo otro servicio deberá ser referido a personal de servicio calificado 9 El aparato eléctri...

Страница 4: ...o únicamente de acuerdo a las recomendaciones del fabricante 15 En caso de existir una antena externa deberá ser localizada lejos de las lineas de energia 16 El cable de corriente deberá ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo 17 Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u orificios de ventilación 18 S...

Страница 5: ...J 45 RJ 45 Jumper Settings 13 4 Installation 16 4 1 The MicroRack Chassis 16 4 2 Installing the Async 232 422 530 Card in the Chassis 18 4 3 Wiring Up the Async 232 422 530 Card 19 4 3 1 RS 232 Connection 19 4 3 2 Twisted Pair Connection 19 4 3 3 Point to Point Twisted Pair Connection 20 5 Operation 22 5 1 LED Status Monitors 22 5 2 Power Up 23 Appendix A Cable Recommendations 24 Appendix B Interf...

Страница 6: ...fter the terminal raises RTS Pin 9 DSR Pin 2 turns ON immediately after the rack has power CD Pin 3 is constantly ON if RXC is present normal if RXC is absent Surge Protection 600W power dissipation at 1 mS MTBF 239 906 hours MTTR 1 hour Operating Temperature 32 to 122 F 0 to 50 C Humidity 10 to 95 noncondensing Altitude Up to 15 000 feet 4570 m Power Provided by power supply in rack Size 3 1 H x ...

Страница 7: ...ard features 13 easy to read front panel LEDs which monitor the status of data transmission As an added feature a set of easily accessible configuration straps allows the user to control the function of the carrier detect LEDs The Async 232 422 530 Card uses the latest surface mount technology for high quality short range modem performance in a convenient rack card Filling one function card slot o...

Страница 8: ...2 422 530 Card uses two jumpers that allow configuration to a wide range of asynchronous applications These jumpers are accessible when the card is slid out of the rack chassis Once the hardware is configured the Async 232 422 530 Card is designed to operate transparently without need for frequent re configuration Just set it and forget it Figure 3 1 Location of configuration jumpers on the Async ...

Страница 9: ...figure the function of both front panel Carrier Detect LEDs as well as the rear interface card CD signal Figure 3 2 shows the orientation of these jumpers Notice that each jumper can be either on pegs 1 and 2 or on pegs 2 and 3 Note Pin 1 is always located on the top or left side of the jumper set Figure 3 2 Orientation of interface card straps 1 2 3 1 2 3 1 2 3 ...

Страница 10: ...mally the CD LED will blink to indicate the presence or absence of the carrier When set to Always on the CD LED will always indicate that the carrier is ON The table below summarizes the jumper settings The default position is Always on Interface Card Jumper Summary Table Jumper Function Position 1 2 Position 2 3 JP1 Unit A Carrier Detect Always ON Normal JP2 Unit B Carrier Detect Always ON Normal...

Страница 11: ...or your application Each rear card is configured by setting straps on the PC board 3 3 1 RJ 11 RJ 45 JUMPER SETTINGS Figure 3 4 shows the jumper locations for the IC474C rear card These jumpers determine various grounding characteristics for the RS 232 and twisted pair lines RJ 11 RJ 11 RJ 45 RJ 45 RJ 45 RJ 45 RJ 45 RJ 45 8 pin 8 pin 10 pin 10 pin 6 pin 6 pin 10 pin 10 pin IC474C IC475C ...

Страница 12: ... on the next page provides a summary of jumper functions for both of the rear cards The next page describes each jumper s function JB2 JB4 JB6 JB7 Terminal RS 232 RJ 11 Unit A RJ 11 Unit B Converter twisted pair RS 422 RJ 45 Unit A RJ 45 Unit B JB5 1 2 3 1 2 3 1 2 3 3 1 2 1 2 3 ...

Страница 13: ...B7 DTE B DSR Connected N A Indicates factory default Line Shield JB2 and JB4 This jumper pertains to the line interface In the connected position the jumper links RJ 11 pins 1 and 6 to frame ground and the rear panel These pins can be used as connections for the twisted pair cable shield In position 2 and 3 pins 1 and 6 or RJ 45 pins 2 and 7 are disconnected from frame ground JB2 and JB4 Position ...

Страница 14: ...2 530 Card is also disconnected and can cause improper operation if the jumper is installed incorrectly JB6 and JB7 Position 1 2 DSR Position 2 3 N A Do not use SGND and FRGND JB5 In the connected position this jumper links RJ 45 pin 5 Signal Ground and frame ground through a 100 ohm 1 2 watt resistor In the open position pin 1 is disconnected from frame ground JB5 Position 1 2 SGND Pin 5 and FRGN...

Страница 15: ...igure 3 5 RJ 45 RJ 45 jumper locations Refer to Table 3 1 for a summary of the jumper functions 3 1 2 3 1 2 3 1 2 3 1 2 1 2 3 JB2 JB4 JB6 JB7 Terminal RJ 45 Unit A RJ 45 Unit B Converter twisted pair RJ 45 Unit A RJ 45 Unit B JB5 ...

Страница 16: ...this jumper must be installed only in one position Place the jumper across pins 1 and 2 so that the terminal DTE sees DSR as high when the rack is powered The other positions across pins 2 and 3 are for Ring Indicate as defined by EIA TIA 561 The RI function is irrelevant and on the Async 232 422 530 Card is also disconnected and can cause improper operation if the jumper is installed incorrectly ...

Страница 17: ...esigned to occupy only 2U in a 19 inch rack Sturdy front handles allow the MicroRack 16 to be extracted and transported conveniently Figure 4 1 The MicroRack 16 with power supply The power supply used in the MicroRack 16 uses the same mid plane architecture as the modem cards The front card of the power supply slides in from the front and the rear card slides in from the rear They plug into one an...

Страница 18: ...s a 400 mA fuse for 120 VAC circuits and a 200 mA fuse for 240 VAC circuits The fuse compartment is located just below the AC socket on the rear card To replace the fuse 1 Turn the power switch off and remove the power cord 2 Using a small screwdriver pop the compartment open it will slide open like a drawer Depending upon the exact part used the drawer may slide completely out of the fuse holder ...

Страница 19: ...30 Card in the Chassis The Async 232 422 530 Card is made up of a front card and a rear card The two cards meet inside the rack chassis and plug into each other by way of mating 50 pin card edge connectors Use the following steps as a guideline for installing each Async 232 422 530 Card into the rack chassis 1 Slide the rear card into the back of the chassis along the metal rails provided 2 Secure...

Страница 20: ... 232 422 530 Card is wired as a DCE Data Communications Equipment Therefore it wants to connect to a DTE Data Termination Equipment If your RS 232 output device is a DTE use a straight through cable to connect to the Async 232 422 530 Card If your RS 232 output device is DCE call your supplier for specific installation instructions 4 3 2 TWISTED PAIR CONNECTION The Async 232 422 530 Card operates ...

Страница 21: ...to the next page for more information CROSSOVER CABLES RJ 11 Signal Pin No Color Color Pin No Signal GND 1 Blue White 6 GND RCVB 2 Yellow Red 4 XMTB XMTA 3 Green Black 5 RCVA XMTB 4 Red Yellow 2 RCVB RCVA 5 Black Green 3 XMTA GND 6 White Blue 1 GND RJ 45 Signal Pin No Color Color Pin No Signal GND 2 Orange Brown 7 GND RCVB 3 Black Green 5 XMTB XMTA 4 Red Yellow 6 RCVA XMTB 5 Green Black 3 RCVB RCV...

Страница 22: ... RS 232 jacks on rear interface card 1 N A 2 DSR 3 CD 4 N A 5 SG 6 RD 7 TD 8 CTS 9 RTS 10 N A 1 Blue 2 Yellow 3 Green 4 Red 5 Black 6 White 1 Blue 2 Orange 3 Black 4 Red 5 Green 6 Yellow 7 Brown 8 Slate RJ 11 RJ 45 8 1 n a 2 Blue 3 Orange 4 Black 5 Red 6 Green 7 Yellow 8 Brown 9 Slate 10 n a RJ 45 10 ...

Страница 23: ...erate the units 5 1 LED Status Monitors The Async 232 422 530 Card features 13 front panel LEDs that indicate the condition of the modem and communication link Figure 5 1 shows the positions of the LEDs Figure 5 1 The Async 232 422 530 Card front panel showing LED positions UNIT A UNIT B Power RD CD TD RD CD TD 5 Operation ...

Страница 24: ...CD LED will always be green If the carrier detect strap is set to Normal the green LED lights when the carrier is on the red LED lights when the carrier is off 5 2 Power Up There is no power switch on the Async 232 422 530 Card Power is automatically applied to the Async 232 422 530 Card when its card edge connector touches the chassis s mid plane socket or when the chassis s power is turned on NO...

Страница 25: ...i 19 22 24 38 4 115 2 5 6 3 1 2 5 0 19 2 9 4 5 6 4 4 For optimum performance from your Async 232 422 530 Card keep the following guidelines in mind Always use twisted pair wire this is not an option Use twisted pair wire with a capacitance of 20 pf ft or less Avoid twisted pair wire thinner than 26 AWG in other words avoid higher AWG numbers than 26 Use of twisted pair with a resistance greater th...

Страница 26: ...ta 7 103 Transmitted Data 8 106 Clear to Send 9 105 133 Request to Send Ready for Receiving 10 N A Not Used Pins 2 9 conform to the EIA TIA 561 eight position non synchronous interface standard RJ 11 RJ 11 RJ 45 RJ 45 RJ 45 RJ 45 RJ 45 RJ 45 8 8 1 1 6 pin 6 pin 10 pin 10 pin Appendix B Interface Settings For all modular jacks 6 8 or 10 position Pin 1 is always toward the bottom when the rear card ...

Страница 27: ...2 422 530 CARD DB25 RJ 45 8 Pin DSR 6 1 CD 8 2 DTR 20 3 Signal Ground 7 4 RD 3 5 TD 2 6 CTS 5 7 RTS 4 8 DB9 RJ 45 8 Pin DSR 6 1 CD 1 2 DTR 4 3 Signal Ground 5 4 RD 2 5 TD 3 6 CTS 8 7 RTS 7 8 Appendix C PC Adapters ...

Страница 28: ...1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 Copyright 1996 Black Box Corporation All rights reserved ...

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