Livingston PortMaster 3 » History » Version 12
laforge, 02/20/2022 02:56 PM
1 | 1 | laforge | h1. Livingston Portmaster 3 |
---|---|---|---|
2 | 2 | laforge | |
3 | 5 | laforge | @laforge bought two Livingston Portmaster 3 PM3A-1E, which are RAS (Remote Access Server) that |
4 | 2 | laforge | * terminates one 1E line (30 B-channels) |
5 | * provides ISDN dial-up on those channels |
||
6 | * provides DSP based modems in case analog modem calls should be handled. |
||
7 | |||
8 | More details to follow. |
||
9 | 3 | laforge | |
10 | h2. Documentation |
||
11 | |||
12 | * attachment:portmaster3_hardware_installation.pdf |
||
13 | * attachment:portmaster3_configuration.pdf |
||
14 | 4 | laforge | * more below (Attachments) |
15 | 6 | laforge | |
16 | 12 | laforge | h2. Electronics / Pictures |
17 | |||
18 | {{thumbnail(Livingston_Portmaster3_front.jpg)}} |
||
19 | {{thumbnail(Livingston_Portmaster3_top.jpg)}} |
||
20 | {{thumbnail()}} |
||
21 | {{thumbnail()}} |
||
22 | {{thumbnail()}} |
||
23 | |||
24 | 6 | laforge | h2. Spare Parts / Mods |
25 | |||
26 | h3. Fan |
||
27 | |||
28 | 7 | laforge | The original fan is a Fonsan DFB0812M (DC 12V 0.1A) fan by DELTA ELECTRONICS INC. The specs seem to state 2600 RPM / 24.8 dB(A) / 29 cfm. |
29 | 6 | laforge | |
30 | 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) |
||
31 | |||
32 | 1 | laforge | 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... |
33 | 7 | laforge | |
34 | h3. Power Supply |
||
35 | |||
36 | One of @laforge's PM3A-E1 had a broken power supply. The oroginal PSU is an ASTEC LPS1112 rated for 5V/22A output (80W convection cooled, 1120W with 30cfm forced air). |
||
37 | |||
38 | It was replaced with a Mean Well LRS-150F-5. Mechanical assembly via a custom adapter plate that was fabricated easily from a small piece of aluminium sheet metal with a few drill holes. |
||
39 | |||
40 | {{thumbnail(PM3-PSU-1.jpg)}} |
||
41 | 8 | laforge | {{thumbnail(PM3-PSU-4.jpg)}} |
42 | {{thumbnail(PM3-PSU-2.jpg)}} |
||
43 | 10 | laforge | |
44 | h2. Configuration |
||
45 | |||
46 | h3. route to different telpnet hosts based on called party number |
||
47 | |||
48 | Assuming one wants to use a PM3 to act as modem bamk for accessing differnt [virtualized] BBSs over telnet, the problem is how to route the inbound call to a specific telnet IP address. The non-radius stand-alone configuration of the PM3 only permits either: |
||
49 | * automatic forwarding of all calls to one global telnet/rlogin host |
||
50 | * allowing the users to enter the hostname for telnet themselves |
||
51 | 11 | laforge | * providing a list of pre-configured telnet desinations to all users (this was used at the 36C3 retronetowrking installation, see [[retro-bbs:36C3]]) |
52 | 1 | laforge | |
53 | 11 | laforge | |
54 | 10 | laforge | However, with the _Call-Check_ radius feature, it should be possibl to receive the called + calling identity before the call is even accepted, and the nin return provide the telnet IP/port to which the call shall be routed. |
55 | |||
56 | Details in |
||
57 | * Page 4-17 of the PM3A Radius for Unix manual |
||
58 | ** PM3A sends _access-request_ with |
||
59 | *** User-Name=SETUP.Calling-Station-Id/No-Call-ID |
||
60 | *** Service-Type=Call-Check |
||
61 | *** Called-Station-Id=SETUP.Called-Station-Id |
||
62 | ** Radius sends response with |
||
63 | *** Login-IP-Host pointing to IP of telnet/rlogin |
||
64 | *** Login-Service=(Telnet,Rlogin,TCP-Clear) |
||
65 | *** Login-TCP-Port pointing to IP of telnet/rlogin |
||
66 | 1 | laforge | *** Service-Type=Login-User |
67 | 10 | laforge | * Page 3-4 of the PortMaster Command Line Reference |
68 | 11 | laforge | ** @set call-check on@ |