LOEWE MultiTel-D

Warning! MultiTel-D devices contain a Lithium backup battery, which will leak catastrophically and destroy the entire device.
The battery is contained on the SRAM module, which can be removed without tools by unclipping the top cover, removing the holding bracket and then just unplugging the module.

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Users Manual
Service Manual (Schematics, PCB layout, Pinouts)


- BTX/videotex terminal
- 80-character ASCII terminal mode (with ANSI-sequence support)
- external RS232 for faster modem, ISDN TA, direct PC connection
- DB25/parallel port printer interface
- black/white CRT

Battery replacement

The SRAM backup battery (used for configuration, bookmarks, macro, etc. storage) can be replaced with a CR2032 coin cell battery.

A Q&J CR2032-BS-6-1 holder (LCSC #C70377) seems to fit pretty well:

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External modem/ISDN TA interface

RS232 (V.24) port on the back can be used to connect via modems with up to 9600 baud.
An ISDN TA can also be used. ELSA MicroLink ISDN was used successfully:

IMG_8522.jpg IMG_8524.jpg IMG_8529.jpg

Files (9)
MultiTel-D_20Bedienungsanleitung.pdf View MultiTel-D_20Bedienungsanleitung.pdf 9.65 MB manawyrm, 10/04/2023 09:55 PM
loewe_multitel-p.pdf View loewe_multitel-p.pdf 11.6 MB manawyrm, 10/04/2023 09:55 PM
IMG_8510.jpg View IMG_8510.jpg 3.05 MB manawyrm, 10/04/2023 09:59 PM
IMG_8505 (1).JPG View IMG_8505 (1).JPG 1.42 MB manawyrm, 10/04/2023 09:59 PM
IMG_8434.jpg View IMG_8434.jpg 3.71 MB manawyrm, 10/04/2023 09:59 PM
IMG_8522.jpg View IMG_8522.jpg 1.46 MB manawyrm, 10/04/2023 10:03 PM
IMG_8524.jpg View IMG_8524.jpg 3.37 MB manawyrm, 10/04/2023 10:04 PM
IMG_8529.jpg View IMG_8529.jpg 4.44 MB manawyrm, 10/04/2023 10:05 PM
IMG_8438.jpg View IMG_8438.jpg 4.32 MB manawyrm, 10/04/2023 10:06 PM

Updated by manawyrm 5 months ago · 3 revisions

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