Communications Modem

Features

Specifications

• Overall Height:
  2.250 inches
• Overall Width:
  7.000 inches
• End Application:
  Autoamted surface observing system (asos)
• Circuit Quantity:
  3
• Federal Supply Class (fsc):
  Miscellaneous communication equipment
• National Stock Number (nsn):
  5895-01-368-4615
• Special Features:
  Drawing name: modem, stand-alone, 9600 baud; data rates: ccitt v.22bis compatible 2400 bps; ccitt v.22 or bell 212a compatible 1200 bps; bell 103a compatible 300 bps; operation: full duplex over 2 wire, dial-up, leased line; modulation and carrier freq: qam (2400 bps originate 1200 hz answer 2400 hz.); fsk (1200 bps originate 1200 hz. Answer 2400 hz.); fsk (300 bps, originate mark 1270 hz., space 1070hz.; answer mark 2025 hz., space 2025 hz.); line coupling: 600 ohms transformer coupled; transient protected; output levels: permissive (-9 dmb); programmable 0 to -15 dbm); connectors: rs-232 db-25 2-rj11 phone jacks; operating modes: direct (unbuffed), buffered (native), buffered mnp