Devolo MicroLink ISDNi¶

• Table of contents
• Devolo MicroLink ISDNi
  • Hardware
  • AT-commands
    • Important AT-commands

ISDN modem / terminal adapter made by devolo AG (former ELSA).

• devolo-Microlink-ISDNi-manual-en.pdf
• devolo-Microlink-ISDNi-manual-de.pdf (german)
• devolo-Microlink-ISDNi-datasheet-2002-de.pdf (german)
• devolo-Microlink-ISDNi-datasheet-2006-de.pdf (german)

Hardware¶

We can see here:

• Siemens PSB2186H V1.1 ISAC-S TE PSB2186H.pdf
  • 7.68 MHz XTAL
• Siemens PSB21525 H V2.1 HSCX TE PSB2152B.pdf
• PULSE T5015 (ISDN S-Interface transformer) T5011.pdf
• Ambient/Cirrus Logic MD4450C-SC-B (ARM based Modem Controller)
• 2 x ATMEL AT29C020 (2-MBit (256K x 8) 5-volt Only Flash Memory AT29C020.pdf
• Fairchild MM74HC
• SIPEX SP207E (RS232 Transceiver) SP207E.pdf
• ST L4962A (Voltage Regulator)
• 2 x Cypress CY7C109B (128K x 8 SRAM) CY7C109B.pdf
• ...

AT-commands¶

OK
ATI0
644

OK
ATI1
000

OK
ATI2
OK

OK
ATI2
OK

OK
ATI3
Ver. 2.29 vom 16.09.2004

OK
ATI4
  E1    Q0    V1    X4  
 $D0  
 &C1   &D2   &S0   &Y0  
 -M0  
 \D0   \Q3   \T0   \V8   \X0  
 *Q0  

OK
ATI5
1990.000.000 C ր� 0000000064

OK
ATI6
devolo MicroLink ISDNi

OK
ATI7
CPU  OK
INT  OK
ROM  OK
RAM  OK
EEP  OK
ISAC OK
HSCX OK

OK
ATI8
OK
ATI9
(#DVL1990\00000000\MODEM\\devolo MicroLink ISDNi00)

OK

Important AT-commands¶

# set MSN (comma separated up to three)
AT$IMSN=0,"5210","5211",

# display defined MSN
AT$IMSN?

# display ISDN settings
AT$I?

# set ISDN settings to factory default
AT$IRES

# set D-channel protocol (DSS1/1TR6/AUTO)
AT$IDP=DSS1

# set ISDN bitrate (64000/56000) 64k bps by default)
AT$IBR=64000

# set B-channel protocol (see table below for possible values)
AT$IBP=Value

# set bearer capability for outgoing calls (see table below for possible values)
AT$ISCO=0,Value