Livingston PortMaster 3 » History » Revision 6
Revision 5 (laforge, 11/21/2020 09:32 PM) → Revision 6/22 (laforge, 11/24/2020 04:36 PM)
h1. Livingston Portmaster 3
@laforge bought two Livingston Portmaster 3 PM3A-1E, which are RAS (Remote Access Server) that
* terminates one 1E line (30 B-channels)
* provides ISDN dial-up on those channels
* provides DSP based modems in case analog modem calls should be handled.
More details to follow.
h2. Documentation
* attachment:portmaster3_hardware_installation.pdf
* attachment:portmaster3_configuration.pdf
* more below (Attachments)
h2. Spare Parts / Mods
h3. Fan
The original fan is aFonsan DFB0812M (DC 12V 0.1A) fan by DELTA ELECTRONICS INC. The specs seem to state 2600 RPM / 24.8 dB(A) / 29 cfm.
I found it too noisy and replaced it with a Noctua NF-A8 FLX with L.N.A (reduced to 1650 rpm / 12.9 dB(A) / 24 cfm)
Fun fact: The PM3 actually seems to have a 5V -> 12V DC/DC upconverter just for the fan - instead of simply using a 5V fan...
