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Magic 485F Adapter

Amplicon products are produced in the United Kingdom under a quality system

approved by the British Standards Institution

Magic 485F25 & F9

RS 232-485

AUTOMATIC

RS 485

TRANSMITTER

ENABLE

This Instruction Manual is supplied with the Magic 485F Adapter to provide the user with sufficient information to

utilise the purchased product in a proper and efficient manner. The information contained has been reviewed and is

believed to be accurate and reliable, however

Amplicon Liveline Limited

accepts no responsibility for any

problems caused by errors or omissions. Specifications and instructions are subject to change without notice.

Magic 485F Instruction Manual Part Nº 859 933 74 Issue A3

© Amplicon Liveline Limited

Prepared by James Chisholm

Approved for issue by A.S. Gorbold, Operations Director

BS EN ISO 9001

Certificate No. FM 15094

Affirmed by

Declaration of Conformity

Содержание Magic 485F25

Страница 1: ...oduct in a proper and efficient manner The information contained has been reviewed and is believed to be accurate and reliable however Amplicon Liveline Limited accepts no responsibility for any problems caused by errors or omissions Specifications and instructions are subject to change without notice Magic 485F Instruction Manual Part Nº 859 933 74 Issue A3 Amplicon Liveline Limited Prepared by J...

Страница 2: ...clare that the product s described in this Instruction Manual perform in conformity with the following standards or standardisation documents Electro Magnetic Compatibility EMC EN55022 1995 Emission Standard BS EN50082 1 1992 Generic Immunity Standard EMC Directive 89 336 EMC Jim Hicks I Eng FIEIE Managing Director Amplicon Liveline Limited ...

Страница 3: ...signals are connected through a pluggable 8 way screw terminal assembly at the free end of the Adapter 1 2 The Products Described in this Manual The 485F range of boards share some common circuitry and features and are referred to in this manual either generically or individually 485F Refers to both boards 485F25 Refers to the 25 way D type version only 485F9 Refers to the 9 way D type version onl...

Страница 4: ...the information in this manual to ensure that the product is being correctly applied If an application problem persists please request Technical Support on one of the following numbers Telephone UK 01273 608 331 International 44 1273 608 331 Fax UK 01273 570 215 International 44 1273 570 215 E mail support amplicon co uk Internet www amplicon co uk 1 5 Repairs If the Magic 485F Adapter requires re...

Страница 5: ...number on the outside of the packaging to ensure that the package is accepted by the Goods Inwards Department Address repairs to Customer Services Department AMPLICON LIVELINE LIMITED Centenary Industrial Estate Brighton East Sussex BN2 4AW England ...

Страница 6: ...rough a pluggable 8 way screw terminal connector assembly at the free end RS422 485 Connections on 8 way Pluggable Terminal Strip The DC power input RS485 transmission turnaround external control signal and RS422 485 data signal connections are made via an eight way screw terminal connector The supplied connector can be unplugged from the Adapter for ease of making the cables without removing the ...

Страница 7: ...or convenience the plastic case is supplied in two parts and should only be clipped together when any configuration changes have been made Operational tests can be performed before the case is fitted FIGURE 2 1 485F25 BOARD LAYOUT AND JUMPER POSITIONS FIGURE 2 2 485F9 BOARD LAYOUT AND LINK POSITIONS SK2 PL1 J2 C2 U1 C3 U4 U5 C6 R5 C2 U3 C1 R6 J3 C7 R4 R3 R2 C5 C4 R1 D1 J1 ...

Страница 8: ...er Transmission Line Termination For proper operation of the RS422 485 bus in full or half duplex multi drop or point to point communication it is recommended that termination be applied to the receiver end of the data lines The simplest form of termination is line to line with typically a 120 Ω resistor across the differential input In a multi drop system the terminator resistor is only required ...

Страница 9: ...ed OFF OFF OFF X RS485 transmitter turnaround time 4 us ON OFF OFF X RS485 transmitter turnaround time 8 us OFF ON OFF X RS485 transmitter turnaround time 16 us ON ON OFF X RS485 transmitter turnaround time 32 us OFF OFF ON X RS485 transmitter turnaround time 64 us ON OFF ON X RS485 transmitter turnaround time 128 us OFF ON ON X RS485 transmitter turnaround time 256 us ON ON ON X RS485 transmitter...

Страница 10: ...s supply voltage must be 230 VAC 10 50 Hz The DC output is by a two wire cable approximately 2 m in length This cable is terminated in a moulded connector which must be cut off and discarded The two wires can then be parted and stripped back about 6 mm The black wire is negative and goes to terminal 8 GND of the Magic 485F Adapter and the black wire with a white stripe is positive and goes to term...

Страница 11: ...ut Resistance 5 kΩ RS232 High signal output 9 V RS232 Low signal output 9 V RS232 Output Resistance 300 Ω RS422 485 Input sensitivity 0 2 V RS422 485 Input Hysteresis 70 mV RS422 485 Output drive 1 5 V minimum fully loaded RS422 485 Output load 27 Ω minimum RS422 485 Receiver I P Termination 120 Ω resistor across differential input terminals Can be disconnected by switching SW1 4 Data Rate 120 kBd...

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