M400 Spread Spectrum Modem
C-Band 5.725 - 5.850 GHz / S-Band 2.400-2.4835 GHz

 
 

	Features
	General Description
	Point-to-Point Applications
	Specifications
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Features

• Simple configuration reduces technician time and lowers installation costs 
• Range up to 30 miles (50 km), reaches more destinations without a repeater 
• Frequency Division Duplex (FDD) Operation 
• Ruggedized weatherproof packaging of outdoor RF unit
• Front or rear mounted access
• AC or DC power supply
• 4xT1/E1
• 1-year warranty 

General Description

The M400 Spread Spectrum Modem provides a 4xT1/E1 solution for voice and data applications between two locations up to 30 miles (50 km) apart. This technology delivers very low bit error rate links that have high immunity to interference. A pair of M400 Modems with line-of-sight access create a robust wireless link using spread spectrum microwave transmission.

 These links are ideal for public and private networks. Applications include Wireless Local Loop (WLL), Wide Area Networking (WAN), Metropolitan Area Networking (MAN), and cell site interconnections. High-performance links are ideal for frame relay applications and last-mile feeders into fiberoptic and satellite networks.

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Typical Applications for P-Com Spread Spectrum Modems
 

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Specifications

General

Data Rate Capacities

4xT1	DSX–1
4xE1*	G.703
Spreading	Direct sequence
Spread Codes	Sixteen
Processing Gain	>10 dB

Frequency	2.4 GHz	5.7 GHz
D1	2.417 GHz	5.745 GHz
D2	2.465 GHz	5.829 GHz

Transmitter	2.4 GHz	5.7 GHz
Power Output
Standard	+20 dBm	+15 dBm
Adjustment Range	10 dB	10 dB
Transmit IF	200 MHz	200 MHz

Receiver	2.4 GHz	5.7 GHz
Input Level
Max Operation	–30 dBm	–30 dBm
No Damage	0 dBm	0 dBm
Sensitivity
@ 10-6 BER	–80 dBm	–80 dBm
Receive IF	480 MHz	480 MHz

Power Supply

Input Voltage (Specify to order)

AC	90-260 VAC, 50/60 Hz
DC	± 20 to 56 VDC
Power Consumption	55 watts, max

Environmental

Modem
Operational	0° to 60° C
Humidity	0 to 95% (non-condensing)
RF Unit
Operational	–40° to 60° C
Rain	100 mm/hr (4 in/hr)
Modem & RF Unit
Storage	–40° to 70° C
Altitude, AMSL	4600 m (15,000 ft)
Humidity	0 to 95% (non-condensing)

Mechanical

RF Unit (Tower mount, outdoor)
Width	36 cm (14 in)
Height	9 cm (3.7 in)
Depth	28 cm (11 in)
Weight	3.6 kg (8.0 lb)
Modem (Rack mount, indoor)
Width	43 cm (17 in)
Height	4.5 cm (1.75 in)
Depth	43 cm (17 in)
Weight	4.5 kg (10 lb)

Connectors

IF	Type “N” female
RF	Type “N” female
NMS	DB-9 female
Summary Fault	Terminal strip
AC Supply	Switched, 3 cond. EIA
DC Supply	Plug, terminal strip
User Data Connections (Specify to order)
T1	RJ-45
E1	BNC

Certifications and Regulatory
FCC and many other countries

Warranty
Includes a standard 1-year warranty

* 3xE1 @ 2.4 GHz

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