从China供应商批量进口4/8/16/24 E1 Add/Drop Modular Stm1 Multi Service

Global Tech economic multi-service SDH is fully compliant with ITU-T and China domestic SDH standard, and can benefit your network with compact design, flexible topology and intelligent architecture. GT-SDH-155B provides two STM-1 optical line interfaces, versatile E1, V.35 and FE multiplexing and transmission, ITU-T G.813 compliant NE timing, VC-12 level switching and path protection mechanism. GT-SDH-155B can operate as ADM or TM to construct point-to-point, chain and ring networks. * Compact 1U design, 19¡± standards rack and less space consumption. * Support Ring,Chain and P to P topology structure, Perfect NMS and CLI Management. * 2 STM-1 optical interfaces, optional 1+1 protection operation. * 2~ 8 GFP applied FE interfaces(or droping in 2 Gigabit Ethernet), optional 4~ 16 E1 interfaces, 1~ 2 V.35 interfaces. * Configurable N* 64K V.35 interface, N=1~

32. * Remote Power Monitoring and Loopback Test. * Remote management and centralized management. Support DCC over VC-12. * Dual power supply: DC -48V, AC 220V. Technical Parameter Optical Interface * Optical Port: S1.1, L1.1, L1.2 * Wavelength: 1310nm, 1550nm * Coding: NRZ * Max. Spectrum Width (RMS): G.957 * Max. Tx Power: -8/ 0dBm * Min. Tx Power: -15/ -5dBm * Extinction: 8.2/ 10dB * Rx. Sensitivity: -28/ -34dBm, BER 10-10 * Rx. Overload: -8/ -10dBm, BER 10-10 Ethernet Interface * 10M/ 100/1000M auto negotiation * Full/half duplex auto negotiation * MDI/ MDIX auto negotiation * Connector: RJ45 * Related Standard: IEE802.3, IEE802.1Q(VLAN) * MAC Address Table: Up to 4096 E1 Interface * Coding: HDB3 * Bit rate: 2.048M bps ¡À50ppm * Connector: BNC (75¦¸) / RJ11 (120 ¦¸) V.35 Interface * Bit Rate: N* 64Kbps, N=1~ 32 * Electric Feature: ITU-T V.35 * Terminal Interface: ISO2593 Operation Environment * Working Temperature: -50~ 50 * Storage Temperature: -40~ 85 * Related Humidity: 5%~ 95%, non-condensing * No corrosive and solvent gas, no dust and heavy EMI * Power Supply: AC 220V, DC -48V * Power Consumption: ¡Ü 20W * Physical Dimension: 483mm(W)* 45mm(H)* 154mm(D).