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Livingston Enterprises PortMaster 25

Terminal Server

Basic Information

Manufacturer
Livingston Enterprises
Model
PortMaster 25
╰ Also known as
PM-25
Device Type
Terminal Server

Rack Mounting

Rackmountable
Yes
Rack Units
2U

Power

Power Supply
Internal

Fixed Interfaces

Data Interfaces

Qty Speed Protocol / Signaling Interface Notes
3x → 24x 115.2 kbps TIA-232 (RS-232)TIA-423 (RS-423) Proprietary —
—
1x 10 Mbps Ethernet BNCDA-15RJ-45 (8P8C)
—

Management Interfaces

Qty Type Interface Pinout Notes
1x Console DB-25 —
—

Change History

Updated TheSerialPort 2026-04-10 19:14
  • Network Interface: Changed Breakout qty
  • Network Interface: Changed Notes
Updated TheSerialPort 2026-04-10 14:03
  • Network Interface: Changed Interfaces
  • Deleted Network Interface: 1x 10Mbps
  • Deleted Network Interface: 1x 10Mbps
Updated TheSerialPort 2026-04-05 12:13
Updated TheSerialPort 2026-04-05 12:13
  • Model: PortMaster 2 #1 → PortMaster 25
  • Also known as: PM-2 → PM-25
  • Status: Draft → Published
  • Submitted by: (empty) → TheSerialPort
  • Network Interface: Changed Quantity
  • Network Interface: Changed Interface
  • Network Interface: Changed Notes
  • Deleted Network Interface: 1x DB-25
  • Added Management Interface: 1x Console DB-25
  • Deleted URL: Configuration Guide: http://www.bitsavers.org/pdf/livingstonEnterprises/950-1201B_Configuration_Guide_for_Portmaster_Products_Dec95.pdf

Submitted by TheSerialPort on April 5, 2026