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ISDN-Controller T1-B

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ISDN-Controller T1-Presse1.jpg
Press material (C) AVM GmbH
ISDN-Controller T1-Image2.png
Screenshot english T1/T1-B PDF (C) AVM GmbH


The ISDN-Controller T1-B is a professional 19" active S2M controller for up to 30 ISDN lines, an advanced version of the ISDN-Controller T1 which additionally contains one ISDN-Controller T1 Booster board. The T1-B comes with the ISDN-Controller T1 PCI Link card or the ISDN-Controller T1 ISA Link card. Both connect the T1-B to a PC using a 20 Mbps RS422 serial link.


Lab@Home has an excellent T1-B research article. (german)

Daily updated index of all ISDN-Controller T1-B websites. Last update: 2020-12-05 04:01 GMT.

Legend:   on = live URL.   -   host = hosted here.   -   arc = from archive.org.   -   nonpub = non public.   -   dead = dead link.   -   Bold = service portal.


Daily updated index of all ISDN-Controller T1-B downloads. Last update: 2020-12-05 04:52 GMT.

Legend:   on = live URL.   -   host = hosted here.   -   arc = from archive.org.   -   nonpub = non public.   -   dead = dead link.   -   Bold = latest firmware.


Daily updated index of ISDN-Controller T1-B part numbers. Last update: 2020-12-05 04:31 GMT. Click an EAN/GTIN or MPN to search the web for it.
If you know any part numbers not listed here yet, expecially OEM and country specific versions, then please get in touch.

Legend:   ok = supported   -   eos = EOS   -   sold = still sold   -   dead = not sold any more   -   Bold = maintained Icecat entry   -   Italic = logistic entry without datasheet


Selectors >> PSU-Selector >> ISDN-Controller T1-B   -   Showing recommended Power-Supply units.

PSU-Selector Type L. Min Max In Min Max Max Max Out Out Curr Pwr Out2 Out2 Curr2 Pwr2 Cap. Vend. Nick Alias
0 power supply units

Selectors >> Cable+Adapter-Selector >> ISDN-Controller T1-B   -   Showing recommended Cables+Adapters.

Cable+Adapter-Selector Type Length Wires Shield Conn1 Gender Conn2 Gender Conn3 Gender Conn4 Gender
0 cables and adapters


If you want to extend the gallery with own work then please get in touch. See also the Photography-Inspiration article.


The Versions section intends to compare different hardware revisions of a device.
If you could provide images of a revision not listet here yet then please get in touch.

  • TODO


Front panel:

  • Power - LED (gn)
  • Sync - LED (gn) - lit when connected to the ISDN network
  • D - LED (gn) - lit during D-channel activity
  • System - LED (gn) - lit when connected to a PC and drivers are loaded
  • B1-B30 - LEDs (gn) - lit during B-channel activity

Back panel:


Details about the ISDN-Controller T1-B casing:


This is the summary of all ISDN-Controller T1 and ISDN-Controller T1 Booster parts:

Selectors >> Components-Selector >> ISDN-Controller T1-B   -   Chips may occur multiple times if different types were found in probes.

Cat. Qty. Component Purpose Family Coden. Vendor Description
SoC 1x IMST425-G25S Transputer T400 ST 25MHz 32-bit RISC-Transputer without FPU
SoC 4x ST20450-X40S Transputer T400 ST 40MHz 32-bit RISC-Transputer without FPU
SoC 2x IMST400-X20I Transputer T400 ST 20MHz 32-bit RISC-Transputer without FPU
RAM 18x MT4C16256DJ-7 DRAM D-512K Micron FPM DRAM 70ns, 256K x 16bit = 512KB
RAM 16x KM416V256DT-L6 DRAM D-512K Samsung FPM DRAM 60ns, 3.3V, 256K x 16bit = 512KB
Flash 1x AT28LV256-20TC EEPROM EEPROM-32K Microchip EEPROM, 32K x 8bit = 32KB
FPGA 1x A101B-1 FPGA ACT1 Microsemi 1200 Logic Gates FPGA
FPGA 2x A101B-2 FPGA ACT1 Microsemi 1200 Logic Gates FPGA
FPGA 1x GAL16V8C-5LJ GAL 16V8C Lattice 20-Pin Generic Array Logic
FPGA 4x PALLV22V10-7JC PAL 22V10 Lattice 24-Pin Programmable Array Logic
FON 1x PEB20320 V3.2 S2M-PHY MUNICH MUNICH32 Lantiq Multichannel Network Interface Controller for HDLC
FON 1x PEB2035N V4.1 S2M-PHY ACFA ACFA Lantiq Advanced CMOS Frame Aligner
FON 1x PEB22320N V2.1 S2M-PHY PRACT PRACT Lantiq Primary Rate Access Clock Generator and Transceiver
PSU 1x TL7705AC Reset-Gen TL77xx TI Supply Voltage Supervisor, Reset Generator
Misc 1x 74FST3384 Bus-Iface 743384 ON Semi 10-Bit Low Power Bus Switch
Misc 1x 74LVX240 Bus-Iface 74240 ST Octal Inverting Bus Buffer With 3-State Outputs, 5V Tolerant
Misc 3x SN74ACT16841 Bus-Iface 7416841 TI 20-Bit Bus-Interface D-Type Latch With 3-State Outputs
Misc 5x 74HC595 LED-Latch 74595 Various 8-bit Shift Register with Output Latches, 3-state
Misc 1x TL74HCT32D Logic 7432 NXP Quad 2-Input OR Gates
Misc 1x AM26C31C RS-422 AM26C3x TI Quad RS-422 Symmetrical Line Drivers
Misc 2x AM26C32C RS-422 AM26C3x TI Quad RS-422 Differential Line Receivers

TODO: Property:IMST400-X20I OR Property:IMST425-G25S OR Property:MT4C16256DJ-7 OR Property:A101B-1 OR Property:A101B-2 OR Property:GAL16V8C-5LJ OR Property:PEB20320 V3.2 OR Property:siemens OR Property:PEB2035N V4.1 OR Property:PEB22320N V2.1 OR Property:SN74ACT16841 OR Property:AM26C31C OR Property:AM26C32C OR Property:TL74HCT32D OR Property:74HC595 OR Property:TL7705AC OR Property:ST20450-X40S OR Property:KM416V256DT-L6 OR Property:AT28LV256-20TC OR Property:PALLV22V10-7JC OR Property:74FST3384 OR Property:74LVX240


Facts about "ISDN-Controller T1-B"
Accessory-Index40 +
Accessory-LogoImage:ISDN-Controller T1-Presse1.jpg +
Accessory-ModelISDN-Controller T1-B +
Accessory-Nickt1b +
Accessory-TypeISDN-Card +
Accessory-VendorAVM +
ArchitectureRISC32 +
Architecture2RISC32 +
Architecture3RISC32 +
CPU-Clock20 MHz +
CPU-Clock225 MHz +
CPU-Clock340 MHz +
CPU-Cores1 +
CPU-Cores21 +
CPU-Cores31 +
Card-BusRS422 +
Card-Typeactive +
Casing-Dimensions485 x 370 x 50 +
Casing-GroupT1-Casing +
Casing-OrientH +
Casing-Screws4 +
Casing-Wallmountno +
Diagnostic-DSUB15true +
Downloads0 +
FON-ChipsProperty:PEB20320 V3.2 +, Property:siemens +, Property:PEB2035N V4.1 + and Property:PEB22320N V2.1 +
FPGA-ChipsProperty:A101B-1 +, Property:A101B-2 +, Property:GAL16V8C-5LJ + and Property:PALLV22V10-7JC +
Flash-ChipsProperty:AT28LV256-20TC +
Grounding-Screwtrue +
ISDN-Lines30 +
Misc-ChipsProperty:SN74ACT16841 +, Property:AM26C31C +, Property:AM26C32C +, Property:TL74HCT32D +, Property:74HC595 +, Property:74FST3384 + and Property:74LVX240 +
Misc-LEDsSync-LED:gn +, D-LED:gn +, System-LED:gn + and B1-B30-LEDs:gn +
Model-GroupISDN +
PSU-ChipsProperty:TL7705AC +
Power-LEDgn +
Power-XLRtrue +
Product.dehttp://web.archive.org/web/19981205135755/http://www.avm.de/deutsch/aktivt.htm +
Product.inthttp://web.archive.org/web/19981207031035/http://www.avm.de/english/aktivt_e.htm +
RAM17 MB +
RAM-ChipsProperty:MT4C16256DJ-7 + and Property:KM416V256DT-L6 +
RS422-DSUB9true +
Release-Note.dehttp://web.archive.org/web/19990210071554/http://www.avm.de/deutsch/r0797-3.htm +, http://web.archive.org/web/19990302041455/http://www.avm.de/deutsch/r0397-1.htm + and http://web.archive.org/web/19990302055600/http://www.avm.de/deutsch/r0397-4.htm +
S3M-DSUB9true +
Salesdead +
SoCT400 +
SoC-ChipsProperty:IMST400-X20I +, Property:IMST425-G25S + and Property:ST20450-X40S +
SoC2T425 +
SoC3T450 +
SoCs2 +
SoCs21 +
SoCs34 +
Sort-Index99.4 +
Supporteos +
Websites6 +