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Chapter 1 - Introduction
Firmware Upgrades Via flash PROM technology on Multi-Tech’s BBS
Indicators LEDs for Transmit Data, Receive Data, Carrier Detect, Speed, and Off Hook/Out-
Of-Service
Controls Toggle switches for busy-out
Environmental Temperature range: 0°–50°
C (32°–120°
F)
Humidity range: 20–90% (noncondensing)
Power 5 VDC at 0.95 A
Requirements ±16 VDC at 0.1 A
Power Consumption Approximately 6 watts
Dimensions, .9 × 11 × 15 in. (2.2 × 28 × 37 cm) H × W × D
card modem
Weight 2.5 lb. (1.1Kg)
Limited Warranty Two years
Fuses F1 (+5V), F2 (-16V), F3 (+16V)
1.7 Power Supply
DC voltages are supplied to all modems in the CC4800A rack through one or two PS4800A power supplies,
designed for conventional 115 or 230 VAC connection. The power supply is a universal input switching
power supply.