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Zoom V34 External FaxModem » History » Version 1

roox, 04/01/2023 08:27 PM

1 1 roox
h1. Zoom V.34 External FaxModem
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A V.34 faxmodem made by "Zoom Telephonics, Inc.":https://web.archive.org/web/19970131155153/http://www.zoomtel.com/
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Website
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https://web.archive.org/web/19970131174726/http://www.zoomtel.com/products/countries/germany.html
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https://web.archive.org/web/19970131202809/http://www.zoomtel.com/products/international/v34e.html
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Manuals and Support tools
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https://web.archive.org/web/19971015093759/http://www.zoomtel.com/files.html
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Manuals
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* Zoom V.34 owners manual attachment:V32BIS.MAN
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* Hints for using Zoom modems in Unix computer systems attachment:unix.txt
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* AT Commands: attachment:AT_Commands_for_RCV56ACx_RCV336ACx_RCV288ACx_and_RCV144ACx_Modems-Reference_Manual.pdf
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h2. Hardware
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|Supply Voltage|10V AC|
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|Power Consumption|~7.0W|
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|RS232 Connector|DB25|
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|Line Connector|RJ11|
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h3. Pictures
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{{thumbnail(Zoom_V34_External-case-perspective1.jpg)}}
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{{thumbnail(Zoom_V34_External-case-back1.jpg)}}
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{{thumbnail(Zoom_V34_External-case-bottom1.jpg)}}
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{{thumbnail(Zoom_V34_External-pcb-perspective1.jpg)}}
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{{thumbnail(Zoom_V34_External-pcb-perspective2.jpg)}}
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{{thumbnail(Zoom_V34_External-pcb-top-shield1.jpg)}}
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{{thumbnail(Zoom_V34_External-pcb-top1.jpg)}}
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{{thumbnail(Zoom_V34_External-pcb-bottom-shield1.jpg)}}
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{{thumbnail(Zoom_V34_External-pcb-bottom1.jpg)}}
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We can see here
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* Rockwell RC288DPi R6682-26 (Modem Data Pump) attachment:RC288DPI.pdf
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* Rockwell L39W/U L3903-53 921 B12029-3 (Microcontroller)
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* Winbond W24257AK-15 (SRAM)
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* ATMEL AT27C010 (EPROM)
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* ATMEL 24C16 (EEPROM)
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* Philips 74HCT164N (8-bit serial-in, parallel-out shift register)
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* 2x TI DS14C88 (Quad CMOS Line Driver)
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* 1x TI DS14C89 (Quad CMOS Receiver)
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* 1x TI SN74HCT244 (Octal Buffers and Line Driver)
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* 1 x LHI521 AB 9548H
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Label PCB
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<pre>
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  54034 V34XG
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  1.1B AD640
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</pre>
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h2. AT-Commands
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Informational commands
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<pre>
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ATI
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28800
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OK
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ATI1
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255
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OK
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ATI2
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OK
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ATI3
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V1.440-V34_DS-a Z201
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OK
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ATI4
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a007840284C6002F
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bC60000000
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r1005111151012000
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r3000111170000000
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OK
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ATI5
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006
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OK
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ATI6
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RC288DPi Rev 05BA
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OK
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ATI7
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000
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OK
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</pre>
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