Current position: Products -100M series

63E1 SDH155-TM/ADM

ptical 63E1-SDH STM-1 level is a single-board-type SDH (Synchronous Digital Hierarchy) optical transmission systems, devices A, B two 155.52Mb / s optical interfaces, and supports 63 E1 tributary. SDH155 as upper and lower circuit multiplexer (ADM, Add-Drop-Multiplexer) or a terminal multiplexer (TM, Terminal Multiplexer), for the formation of point-chain and ring transmission network.

 NE SDH-155 system is based on a unified network management platform, is in accordance with ITU-T recommendations designed network management software, network resources, equipment configuration, alarm, performance and security management, and do not support multiple optical paths connected subnets unified management, remote network management support Internet mode.


□ hot swappable;

□ support SNMP network management;

□ based on proprietary integrated circuit;

□ unrepeated transmission distance of up to 2∽120 kilometers;

□ Support 1U high 19-inch rack-mounted, 6U chassis plug-in;

□ support point to point, ring, chain network and star networking;

□ have at this end of the remote device to view the work status display function;

□ provides 63 E1 service interface, which could be up and down circuit;

□ multiple power mode options: AC220V, DC-48V / DC24V and the like;

□ provide three kinds of clock mode: External clock, the internal clock, line clock;

□ DC-48V / DC24V power supply with automatic polarity detection function, when installed without distinction between positive and negative;

□ Support ITU-T G.813 standard NE timing function, automatically switch between multiple timing sources;

□ a pair of clock interface can demand access / output 2Mbit / s or 2MHz clock signal;

□ provide four 10/100 / 1000M Ethernet service interface, you can set up logical isolation or physical isolation;

□ can detect when the optical signal is lost for the end of the fiber optic equipment down or nowhere, and through the LED indicates alarm;

□ with two 155M standard SDH optical interfaces can be independently assigned business or protect each other, providing branch 1 + 1 channel protection.

Optical Interface

Working Wavelength: 1310nm / 1550nm.

Rate: 155.520Mb / s ± 4.6ppm.

Compliance: ITU-T G.957 / G.958.

Fiber type: ITU-T G.652 / G.653, single mode;

E1 Interface

Equipment E1 interface comply with G.703

Rate: N * 64Kbps (framing) or 2048Kbps ± 50ppm (non frame)

Pattern: HDB3

Impedance: Unbalanced 75W / 120W balanced

Unbalanced with coaxial adapter, which can be adapted to 75-2 / 3 coaxial

Jitter characteristics: meet G.742, G.823 recommendation

Allows input attenuation: 0∽6dBm

Ethernet interface (10/100 / 1000M)

Rate: 10 / 100M / 1000M adaptive, full / half duplex fully adaptive

Agreement: support IEEE 802.3, IEEE 802.1Q (VLAN)

MAC address table: 4096 MAC addresses can be learned

Physical interface: RJ45 seat support (cross / straight-line adaptive) Auto-MDIX

Power requirements

System Power: AC180V ~ 260V; DC-48V; DC + 24V

Power consumption: ≤35W

working environment

Working temperature: -10 ℃ ∽ ~ 50 ℃

Humidity: 5% ∽95% (non-condensing)

Storage temperature: -40 ℃ ∽80 ℃

Storage humidity: 5% ∽ 95% (non-condensing)


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