OPTICAL MASTER UNIT MARK I
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless – Coverage Date: 4-Jan-18 www.cobham.com/wireless
Document number:A1829300UM Rev. 3.1
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1.1 Features
• Frequency ranges from 88 MHz to 2 170 MHz.
• WDM technology (Wavelength Division Multiplexing) – single fibre connection to each Repeater
• Each OMU supports up to 6 Repeaters
• Scalability – up to four OMUs can be cascaded for support of up to 24 Repeaters
• Multi-sectors support - OMU I can support up to six sectors (model specific)
• Single-source management – cascaded OMUs can be controlled via the “Master” OMU
• Two independent power supplies (in the unit) – can be used to either:
• allow for flexibility in power supply source selection according to the type of voltage available
on site: 115 – 230 VAC 50/60 Hz and 24 – 48 VDC
• provide power supply redundancy by installing two power supplies of the same type
• Flexible RF signal source – RF signal can be acquired either from the BS or from the Repeater's
Service antenna
• Easily replaceable modules
• Simple, local setup via RS232 connection
• Remote management via Ethernet connection or via modem
• Various types of modems are supported: for example GSM, GSM-R, HSDPA/UMTS, TETRA, GPRS
and PSTN.
• Single modem (installed at the Master OMU) is required for management of cascaded OMUs
• Modem can be integrated (part of the Control module) or connected separately
1.2 Models and Ordering Information
OMU is available in a range of models corresponding to repeater products
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