ELSA Microlink ISDNTL V34 » History » Revision 7
Revision 6 (laforge, 12/10/2022 07:29 PM) → Revision 7/9 (laforge, 12/10/2022 07:29 PM)
h1. ELSA Microlink ISDN/TL V34
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This is a rather high-end ISDN terminal adapter from 1995. It combines an ISDN terminal adapter with a built-in V.34 capable analog modem, so both ISDN data calls as well as analog modem calls are possible.
|Supply Voltage|9V AC|
|Power Consumption|?|
|RS232 Connector|DB25|
|Line Connector|RJ-11 (unusual for ISDN)|
h2. Hardware
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The hardware design is a two-layer circhit board design:
* the bottom circuit hoststhe pure ISDN TA
* the daughterboard contains the V.34 analog modem using a Rockwell L39W/U + RCV288DPi chipset
h3. Mainboard
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* Siemens PSB 2186N V1.1 ISAC-S TE
** 7.68 MHz XTAL
* Siemens SAB 82526N HSCX-1 V2.1 _High-Level Serial Communications Controller Extended_ attachment:HSCX.pdf
* NEC D70236AGD-16 _V53A 16-bit microprocessor_ attachment:D70236AGD.pdf
** 29.4912 MHz XTAL
* ST M28C64C-20K1 _64K x8 EEPROM_ attachment:M28C64C-STMicroelectronics.pdf
* Siemens PSB 2110N ITAC V2.3 IOM-2
** 10.75 MHz XTAL
* NEC D72002-11 _Serial Communications Controller_ attachment:DSA2IH00126121.pdf
* Sony K1202Q
* AT29C020 Flash EEPROM
** dump: attachment:elsa_ml_isdn_tl_v34.bin
h3. Daughterboard
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* Rockwell L39W/U L3903-53
* Rockwell RCV288DPi R6682-24
* UMC "UM61256FS-15" 32Kx8 CMOS SRAM attachment:DSA2IH00219003.pdf
* 20.2752 MHz XTAL
* 40.320 MHz XTAL
* Siemens PSB2165N ARCOFI SP1.1
* Speaker
* IS27C010 EEPROM
** image of v1.23: attachment:elsa_ml_336_pcqv_v1_23.bin
h2. EEPROM images
* attachment:elsa_ml_isdn_tl_v34.bin
* attachment:elsa_ml_336_pcqv_v1_23.bin
