what is SDH H9MO-LM63

H9MO-LM63 is a standard SDH terminal multiplexer, and is a member of FastFOM’s “MetroEdge-Express” SDH/MSPP Product family. It multiplexes 63 E1 signals into a STM-1 stream, with TU-12 cross-connect capability. This compact multiplexer is housed in a standard 19” 1U rack mount box.

As a standard and compact SDH TM device, H9MO-LM63 is best suited to applications where high-density E1 ports are required to interface with a SDH network through STM-1 fiber optic connections. For example, it is often used as a concise E1 port extension device for other “MetroEdge-Express” family members, such as H9MO-LMFIT, in various network topologies.

The device can be managed either through the embedded DCC channel within the STM-1 signal, or through the local RJ45 management interface on the equipment panel. When multiple H9MO-LM63s are stacked together, a RS485 bus may be used to link the units to form a single managed object. There are also alarm indication lights and a LCD screen available on the panel for operation monitoring.

1.1     Main Features

  1. Standard STM-1 optical ports, wide range of interface options, including dual or single fiber transmission, wavelengths and distances, as well as FC/SC connectors;
  2. Standard SDH mapping of 63 E1 signals with TU-12 cross-connect;
  3. Revertive and nonrevertive unidirectional 1+1APS supported;
  4. ALS function for operation safety;
  5. Selectable clock sources, including internal, STM-1 line, E1 tributary, and external;
  6. ITU-T G .703 compliant E1 ports, 75W/120W options, with on-line error monitoring and loop-back function;
  7. NM(10Base-T/RJ45) and RS-485 network management interfaces;
  8. Compact 19 inch 1 U box;
  9. -48V DC / 100~240V AC / +24V DC and redundant power supply options;
  10. Remote AC power loss monitoring;
  11. LCD display for system configuration and alarm;
  12. Live software update supported.