STM-4 SDH MSTP Multiplexer
Compact STM-4 SDH Multiplexer
622X is a STM-4 equipment, and provides two 622 Mb/s optical interfaces and four 155 Mb/s optical interfaces.Its service cards are used for 21E1s Add / Drop. It also provides a Network Element (NE) timing function regulated by ITU-T G.813, and 14×14 VC-4 fully cross-connection. The granularity of which is VC-4, VC-3 or VC-12.
It can work independently or co-works with 155S series, as Add-Drop Multiplexer (ADM) or Terminal Multiplexer (TM) to build up a chain, ring or multi-ring network.
It can also work as a DXC unit to cooperate with SDH equipments from other manufacturers, achieving smooth upgrading from STM-1 to STM-4 without influences on the existing network system. The power supply can be selected (220VAC or - 48VDC).
PRODUCT CHARACTER:
. Four STM-1 optical interfaces that can work independently or be set as 1+1 protection.
. Two STM-4 optical interfaces that can be set as 1+1 protection.
. Standard SEC (SDH Element Clock) recommend by G.813, external timing interface, SSM and automatic switching of multiple timing references.
. Supports non-blocked cross-connection among the six optical interfaces, the granularity of which are VC4, VC3 and VC12.
. Supports point-to-point, chain and ring topologies.
. Provides D1~D3 bytes of the ECC channel, the network manage-ment protocol is TCP/IP.
. Provides Ethernet and RS232 NMS interface, the management platform is EasySDHTM.
. The embedded system software supports remote upgrading.
. Maximum 120km transmission distance.
. Single board, 1U height.
