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Lead Sensing Relay
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1. BLACK BOX Copyright 1997 Black Box Corporation All rights reserved 1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 BLACK BOX FEBRUARY 1997 SW702A SW702AE R2 Lead Sensing Relay omroa lt s0 CUSTOMER SUPPORT INFORMATION Order toll free in the U S 24 hours 7 A M Monday to midnight Friday 877 877 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 LEAD SENSING RELAY FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE STATEMENT 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 J of Part 15 of FCC rules which are designed to provide reasonable protection against such interference when the equipment is operated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be necessary to correct the interference Caution Changes
2. ada lejos de las lineas de energia El cable de corriente deber ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u orificios de ventilaci n Servicio por personal calificado deber ser provisto cuando A El cable de poder o el contacto ha sido da ado u B Objectos han ca do o l quido ha sido derramado dentro del aparato o C Elaparato ha sido expuesto a la lluvia o El aparato parece no operar normalmente o muestra un cambio en su desempe o o E El aparato ha sido tirado o su cubierta ha sido da ada 11 12 13 14 16 17 18 CHAPTER 1 Specifications 1 Specifications Indicators Power Switched relay activated Controls Reset resets relay after trigger Disable prevents relay switching Input Ring Indicator and or Carrier Detect Output Dry contacts or switched AC 5 amps Connectors SW702A 1 DB25 female 1 DB25 male 1 AC power input through line cord 1 standard three wire AC power outlet SW702AE R2 1 DB25 female 1 DB25 male 1 IEC female AC power output 1 IEC male AC power input Power 120 240 VAC switch selectable SW702A comes set for 120 VAC SW702AE R2 comes set for 240 VAC Size 2 5 H x 8 W x 6 3 D 6 4 x 20 3 x 16 cm Weight 3 lb 1 4 kg LEAD SENSING RELAY 2 Intro
3. duction The Lead Sensing Relay or LSR for short uses modem signals to control external equipment It receives RS 232 output from a modem and uses one or more signals to control a relay You can choose whether the output is switched dry contacts or switched AC power and whether the output is normally off circuit open or on circuit closed There s also a switch to choose between 120 volt and 240 volt power The output is through a standard three wire AC power outlet for the SW702AE R2 version a stan dard IEC female three wire AC power outlet Both the circuitry and the output are fuse protected Caution Always disconnect the LSR from AC power when you install or disconnect it For security you can set the Disable switch so that the LSR can t be switched accidentally If you have a special application several custom ized options timer functions alarm functions serial or parallel and additional external controls can be special ordered Call with your particular requirements 3 Configuring the LSR In the simplest application the Lead Sensing Relay s output is wired to provide AC power to an external device switching the power on or off when the LSR receives one or more signals from a modem The way the LSR works is controlled by two jumpers W3 and W4 Table 3 1 shows how the jumpers control what the LSR does Table 3 1 Jumpers W3 and W4 Jumper How the LSR works None Output switches
4. echo s lo como sea recomendado por el fabricante 8 Servicio El usuario no debe intentar dar servicio al equipo el ctrico m s all a lo descrito en las instrucciones de operaci n Todo otro servicio deber ser referido a personal de servicio calificado 9 El aparato el ctrico debe ser situado de tal manera que su posici n no interfiera su uso La colocaci n del aparato el ctrico sobre una cama sof alfombra o superficie similar puede bloquea la ventilaci n no se debe colocar en libreros o gabinetes que impidan el flujo de aire por los orificios de ventilaci n 10 El equipo el ctrico deber ser situado fuera del alcance de fuentes SENSING RE de calor como radiadores registros de calor estufas u otros aparatos incluyendo amplificadores que producen calor El aparato el ctrico deber ser connectado a una fuente de poder s lo del tipo descrito en el instructivo de operaci n o como se indique en el aparato Precauci n debe ser tomada de tal manera que la tierra fisica y la polarizaci n del equipo no sea eliminada 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 atenci n a los contactos y recept culos donde salen del aparato El equipo el ctrico debe ser limpiado nicamente de acuerdo a las recomendaciones del fabricante En caso de existir una antena externa deber ser localiz
5. 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 the Radio Interference Regulation of the Canadian Department of Communications Le pr sent appareil num rique n met pas de bruits radio lectriques d passant les limites applicables aux appareils num riques de la classe A prescrites dans le R glement sur le brouillage radio lectrique dict par le minist re des Communications du Canada APTER NORMAS OFICIALES MEXICANAS NOM ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD 1 Todas las instrucciones de seguridad y operaci n deber n ser le das antes de que el aparato el ctrico sea operado Las instrucciones de seguridad y operaci n deber n ser guardadas 2 L t d dad deb dad para referencia futura 3 Todas las advertencias en el aparato el ctrico y en sus instrucciones de operaci n deben ser respetadas 4 Todas las instrucciones de operaci n y uso deben ser seguidas 5 El aparato el ctrico no deber ser usado cerca del agua por ejemplo cerca de la tina de ba o lavabo s tano mojado o cerca de una alberca etc 6 El aparato el ctrico debe ser usado tinicamente con carritos o pedestales que sean recomendados por el fabricante 7 El aparato el ctrico debe ser montado a la pared o al t
6. ur power source For LSRs shipped to North America the switch is set to 120 volts at the factory For LSRs shipped to other areas the switch is set to 240 volts If the factory setting is wrong for your area change It 3 Decide which leads you need to use for switching and set Jumpers W3 and W4 See Table 3 1 page 5 4 Now decide what output mode you need for your application whether switched dry contacts should be available at Positions 1 2 and 3 of TBI TB1 1 Normally Closed Contact TB1 2 Relay Arm TB1 3 Normally Open Contact LEAD SENSING RELAY The AC outlet is wired to AC Earth Ground and AC Neutral directly through connections TB1 6 and TB1 5 The AC terminal of the outlet is wired to the Relay Contact Arm TB1 2 An insulated jumper connects TB1 3 and TB1 4 so that fused AC voltage is applied to the relay s Normally Open Contact NOTE Remove the insulated jumper between TB1 3 and TB1 4 when using dry contacts When the LSR is working it connects AC power from the source through the LSR to the outlet In Switched AC Mode here s how the contacts work TB1 2 Outlet AC terminal TB1 3 TB1 4 TB1 5 Outlet Neutral terminal TB1 6 Outlet Earth terminal You can change the switch mode from normally off to normally on by removing the jumper between TB1 3 and TB1 4 and installing an insulated jumper between TB1 1 and 4 CHAPTER 4 Installation 5 Connect the signal input device usually
7. when CD goes high within 10 seconds of RI going high W3 only Output switches when CD goes high WA only Output switches when RI goes high W3 and W4 Output always switched Test Mode LEAD SENSING RELAY The output is set at the factory to be switched AC power since this is probably the most common use of the LSR But you can easily change the setting by changing the connections at Terminal Strip TB1 which is inside the LSR See Table 3 2 WARNING Be careful Circuits in the LSR carry AC line voltages and currents Always disconnect the LSR from the AC power source before you install or service it and use caution when you connect it to the power source and to the external equipment Table 3 2 AC Input Output Connections TB1 1 Normally Closed Contact TB1 2 Relay Contact Arm AC Out when 3 is tied to 4 TB1 3 Normally Open Contact TB1 4 AC Out TB1 5 AC Neutral Out TB1 6 Earth AC Ground Out TB1 7 Earth AC Ground In TB1 8 AC Neutral In TB1 9 AC In NOTE Remove the insulated jumper between TB1 3 and TB1 4 when using dry contacts CHAPTER 4 Installation 4 Installation Find a spot for the LSR where it will be near the modem and the other equipment to which it will be connected and also near a source of stable AC power Do not connect the power until the installation is complete 1 Set the Disable switch to Disable 2 Make sure the voltage switch 2 is set to the right voltage for yo
8. your modem to one of the DB25 connectors The other connector duplicates its signals so you can install the LSR in line between a modem output and a computer serial port 6 Connect the line cord to the AC power source 7 Move the Disable switch to Active The Lead Sensing Relay is now ready to run
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