Ml-e2

Transcript

Megaplex-2200 Module ML-E2 E2 Main Link Module DESCRIPTION • ML-E2 is a main link module combining all the user traffic of a fully utilized Megaplex-2200 unit, over a single coax or fiber optic 8 Mbps E2 link. A pair of units equipped with ML-E2 modules offers simple and low-cost connectivity with a bandwidth capacity equal to four E1 lines, at distances of up to 75 km (46 miles). • Various optical interfaces are FEATURES • Multiplexes user data stream • • • • • • over a single 8 Mbps E2 coax or fiber optic link Operates with a wide range of fiber optic interfaces Range up to 75 km (46 miles) Conforms to ITU G.703, G.742, G.823, G.956 Optional additional ML-E2 module provides automatic link backup Station clock interface for external clock Works opposite other E2 interface products, such as RAD’s Optimux-4E1 available for the E2 link: ! 850 nm for multimode fiber using LED transmitter ! 1300 nm for single mode fiber using LED transmitter ! 1300 nm using laser for extended range over single mode fiber ! 1550 nm using laser for maximum range over single mode fiber. Interfaces are terminated with a pair of ST, FC/PC or SC type connectors. • An additional ML-E2 module can be installed in the Megaplex-2200 chassis to operate as an automatic backup link, providing full link redundancy for the first link module. • The Megaplex-2200 system nodal timing can be taken from the internal oscillator, or from any internal E1 receive channel. Alternatively, the timing can be locked to an external station clock. This clock can then be passed to other connected Megaplex chassis. The external station clock interface is provided with a dedicated RJ-45 connector on the ML-E2’s interface module panel. • To facilitate system diagnostics, ML-E2 features LED status indicators and AIS alarm generation and recognition. Local and Remote loopbacks on the E2 link are supported. Additionally, Local and Remote loopbacks can also be run per each internal E1 channel in order to locate the individual data stream which might be causing malfunctions. • ML-E2 can also operate opposite other products with standard E2 interface, such as RAD’s Optimux-4E1 four E1 to E2 multiplexer. Together these units can be used to connect various types of user traffic to the SDH network ring (see Application). Megaplex-2200 Module ML-E2 E2 Main Link Module GENERAL • Station Clock Bit rate: 2.048 MHz Line code: AMI Connector: RJ-45 Format: Unframed 1s or RS-422 squarewave (jumper-selectable) SPECIFICATIONS ELECTRICAL E2 LINK • Data Rate 8.448 Mbps • Line Code ! ! ! • Configuration • Diagnostics HDB-3 • Impedance ! ! 75Ω, unbalanced coax ! • Connectors Pair of BNC ! OPTICAL E2 LINK • Data Rate Programmable via terminal interface, or RADview Management Systems Local loopback on E2 link Remote loopback on E2 link Local loopback on internal E1 channels Remote loopback on internal E1 channels ORDERING • Power Consumption MP-2200$-ML-E2/#+ E2 main link module for MP-2200 • Indicators $ Specify chassis type: BM for MP-2200B (6U) chassis FM for MP-2200F (10U) chassis 6.25W max 8.448 Mbps • Fiber Specifications and Range ! See Table 1 • Connectors ! Pair of ST, FC/PC or SC Alarm (red) – alarm on E2 link or any internal E1 channel Test (yellow) – test active (on E2 link or any internal E1 channel) # Specify link connectors type: CX for electrical interface with coaxial BNC connectors ST for ST type connectors FC for FC/PC type connectors SC for SC type connectors Table 1. Fiber Optic Interface Specifications and Range Wavelength Fiber Type (nm) (µ µm) Transmitter Type Power Coupled into Fiber (dBm) Typical Max Receiver Sensitivity Range (km/miles) (dBm) 850 62.5/125 multimode LED -18 -32 3/1.8 1300 62.5/125 multimode LED -18 -32 11/6.9 9/125 single mode LED -18 -34 32/19 1550 On Line (green) – on when E2 link is active; flashes when E2 link is on redundancy standby Local Sync Loss (red) – on local E2 link Remote Sync Loss (red) – on remote E2 link 9/125 single mode Laser -12 -34 48/29 9/125 single mode Laser -12 -34 75/46 + Specify optical interface wavelength and transmitter type (not relevant with CX option): 85 for 850 nm, multimode, LED 13 for 1300 nm, single mode, LED 13L for 1300 nm, single mode, laser 15L for 1550 nm, single mode, laser Note: The ranges specified above were calculated according to the following typical attenuation rates (with a 3 dB margin): 3.5 dB/km for 850 nm multimode, 0.4 dB/km for 1300 nm single mode, 0.25 dB/km for 1550 nm single mode. APPLICATION data communications SDH Network www.rad.com E1 International Headquarters 24 Raoul Wallenberg Street Tel Aviv 69719, Israel Tel: (972) 3-6458181 Fax: (972) 3-6498250, 6474436 Email: [email protected] MP-2100 ML-E2 E1 E1 Fiber E2 (backup) Video Conferencing E1 ML-E2 Router ADM E1 Fiber E2 ADM Optimux-4E1 MP-2200 Range up to 75 km (46 mi) PBX ADM U.S. Headquarters 900 Corporate Drive Mahwah, NJ 07430 Tel: (201) 529-1100 Toll free: 1-800-444-7234 Fax: (201) 529-5777 Email: [email protected] 764-185-09/01 Terminal  2001 RAD Data Communications Ltd. All other trademarks are the property of their respective holders. Specifications are subject to change without prior notice.