User's Manual

MDR2400-SR, MDR5800-SR and Orion 5825-SR
Issue 10 Page 10
1 Introduction
1.1 Radio Description
The MDR2400-SR and MDR5800-SR are ISM band digital radio systems that provide
short to medium range, point-to-point digital communication with high data security at
rates of T1, 2T1 or 4T1. Alternatively, the radio can be software configured to convey
E1, 2E1 or 4E1. The radio can also be configured to bridge or route IP via a 10BaseT
port. The data rates scale depending on the number of enabled T1/E1 tributaries and
whether the data is being bridged or routed. The products make use of spread
spectrum technology and may be operated license-free in the 2.4GHz and 5.8GHz
ISM bands.
The Orion 5825-SR is a similar radio also operating in the 5.8GHz ISM band.
Modulation can be switched between 16 and 32 QAM with digital output scalable up to
8T1/E1.
The radios are ideal for applications such as:
• Cellular/PCS base station interconnects.
• Telecommunications companies, cellular operators and private
carriers.
• State Local and Federal Government communication systems.
• Video surveillance data distribution.
• Power utilities.
• Petroleum/gas collection companies.
• Rural communications.
• Emergency/disaster telephone service restoration.
• Internet distribution.
The radio consists of two main parts:
a. An Outdoor Unit operating in the 2.4 GHz or 5.8 GHz ISM frequency bands.
This could be an MDR2400ET, an MDR5800 or an Orion 5850
unit.
b. An Indoor Unit, available with a Telecommunications (1, 2 or 4T1/E1 and up to
8T1/E1 on the Orion 5825) interface and a Data interface (10BaseT Ethernet).
This could be an MDRTE, an MDRETU (75 Ohm BNC) or an Orion
25 unit. The MDRTE and MDRTEU units operate with the
MDR2400ET and the MDR5800 Outdoor Unit.
Interconnection between the Outdoor Unit and Indoor Unit is achieved using a low-
cost UV-protected STP (Screened Twisted Pair: 4 pairs) data cable and a UV-
protected 2-core power cable. The split Indoor Unit and Outdoor Unit configuration is
used for the lowest loss between the antenna and the transceiver, thereby ensuring
optimal long-range performance.
The Outdoor Units use a Type-N RF (female) output connector for
connection to a coaxial cable jumper when co-located with a 2.4 GHz or
a 5.8 GHz antenna for applications where long range is required.
The Outdoor Unit can also be located remote from the antenna (tower
base or indoor mounted). The RF connector is then connected to the