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 ±50ppm

*     Connector: BNC (75Ω) / RJ11 (120 Ω)

         V.35 Interface

*    Bit Rate: N* 64Kbps, N=1~ 32

*    Electric Feature: ITU-T V.35

*    Terminal Interface: ISO2593

         Operation Environment

*   Working Temperature: -5℃~ 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: ≤ 20W

*   Physical Dimension:

483mm(W)* 45mm(H)* 154mm(D)