Service manual

STP 11-25R13-SM-TG
V - 4
(d) Optional Control Console: 6 pounds (2.7 kg); 9 inches (H) x 10.7 inches (W) x 3.5 inches (D) (22.9
x 27.2 x 8.9 cm).
(e) Optional Transit Case for Umbrella Antenna: 22 pounds (10 kg); 23 inches (H) x 12 inches (W) x
22 inches (D) (58.4 x 30.5 x 55.9 cm).
(f) Transit Case for Aluminum Dish Antenna: 40 pounds (18.1 kg); 20 inches (H) x 36 inches (W) x
17 inches (D) (50.8 x 91.4 x 43.1 cm).
(3) Communication Modes. Full duplex telex, 50 baud, and 66 wpm. Full-duplex voice service. Data
in excess of 11 kBPS uses voice channel and optional modem. Simplex 56/64 kBPS high speed data
(HSD) as an option.
(4) Telephone Interfaces. Two 2-wire telephone circuits conforming to FCC Part 68 requirements,
including use of Rj-ll connector; five 2-wire telephone connectors using the optional control console.
(5) Data Interfaces. Single EIA RS-232C or 20 mA current loop serial data port.
(6) Options. Control console, telex capability, built-in thermal or external printer, carrying case, tripod,
remote control console cable (maximum of 150 meters), two-section aluminum dish antenna, fast warm-up
oscillator, and simplex HSD.
(7) Primary Power. 120/240 VAC +/- 10 percent, 47 to 63 Hz with automatic selection and ground
fault protection; 61 Watts idle, and 280 Watts transmit.
(8) Operating Temperature. Transceiver: -40
o
C to +60
o
C. Control console: -20
o
C to +50
o
C. With
built in printer: 0
o
C to +50
o
C. Executive Telephone only: 0
o
C to +50
o
C.
V-2. INMARSAT.
The INMARSAT organization operates a system of satellites over four regions that cover the globe.
These satellites provide a worldwide range of high quality mobile telecommunications services at sea, in the
air, and on land. Access to the system is provided through Satellite Communication (SATCOM) terminals,
like the Magnaphone, that has been type approved by INMARSAT. The Magnaphone is an INMARSAT-A,
Class 1 SATCOM terminal. It directs a signal to one of the orbiting satellites that in turn redirects it back to
an INMARSAT receiving station on earth. The signal is then routed through the Public Switched Telephone
Network to complete the call.
a. Magnavox has played an integral part in the development of the communications revolution by
pioneering the technology used in satellite navigation equipment, ship-to-shore communications, and
transportable communication terminals.
b. The Magnaphone is the perfect complement to Magnavox's growing family of systems that have
set the standard for satellite communications, including the MX 2400 Marine, the 2400T PLUS
Transportable, the MX 2400T Desktop, the Mobile Communications Center (MCC), and the MX 2400/4
Multichannel SATCOM.