High Integration

• Chassis dimensions: 442 mm (W) x 220 mm (D) x 43.6 mm (H)

Flexible MADM Design

• Supports 21.25 Gbit/s higher order cross-connections, and 5 Gbit/s lower order cross-connections

• Supports networking topologies including point-to-point, chain, ring, hub, and mesh, etc

Various Service Interfaces

• SDH/PDH service

• Ethernet service

• ATM service

• Audio and data service

• DDN service

• G.SHDSL

Smooth Evolution Capacity

• Supports smooth evolution from STM-1 to STM-4 and to STM-16

Highly Reliable Design

• Equipment-level: 1+1 hot backup for the power supply

• Network-level: Linear multiplex section protection (LMSP), Ring MSP, Sub network connection protection (SNCP), Protection for inter-ring services, Fiber-shared virtual path protection

Flexible Process for DCC

• Supports transparent transmission of the DCC bytes and management information transmission through the external clock interface to realize hybrid networking and unified network management

IEEE 1588 V2 Clock Synchronization

• Provides high-precision time synchronization to meet power, finance, and other industry requirements

  Interface Type		Description	Connector Type
  Service interface	SDH service	STM-1 optical interface: supports the Ie-1, S-1.1, and L-1.1 optical modules.	SC/LC
  		STM-1 optical interface: supports the S-1.1 and L-1.1 optical modules that use a single fiber for transmitting and receiving.	SC/LC
  		STM-4 optical interface: supports the Ie-4, S-4.1, and L-4.1 optical modules.	SC/LC
  		STM-16 optical interface: supports the S-16.1 optical modules.	LC
  		STM-1 electrical interface	SMB
  	PDH service	E1/T1 electrical interface	2 mm HM connector
  		Framed E1 electrical interface	DB78 connector
  		E3/T3 electrical interface	LC
  	Ethernet service	10BASE-T, 100BASE-TX	RJ-45
  		100BASE-FX	LC
  		1000BASE-SX/LX	LC
  		1000BASE-FX	LC
  	ATM service	STM-1 optical interface: 155 Mbit/s	MTRJ/LC
  	Audio and data service	RS-232 or RS-422 data and audio interface	2 mm HM connector
  	DDN service	Physical interface complying with multiple protocols, including V.35, V.24, X.21, RS-449, and EIA-530	2 mm HM connector
  		Framed E1 electrical interface	DB78 connector
  	G.SHDSL service	Single pair high-bit-rate digital subscriber line interface	RJ-11
  Clock interface		The clock signals at the 120-ohm external clock interface can be 2048 kbit/s or 2048 kHz.	RJ-45
  Power interface		2x–48 V DC/–60 V DC power interfaces+1x24 V DC interface	4-core socket
  Environment monitoring interface		The EMU board provides the following interfaces: 12 housekeeping signal inputs and 6 housekeeping signal outputs An RS-232/RS-422 serial communication interface	2 mm HM connector
  		The SCB board provides the following interfaces: Four housekeeping signal inputs and 2 housekeeping signal outputs Four transparent data interfaces	RJ-45
  Management interface		A modem interface	RJ-45
  		An NM interface	RJ-45
  Orderwire interface		An orderwire phone interface	RJ-11