OTS-622B is a compact STM-1/4 MSTP with high integration, easy installation. It provides powerful functions, abundant interfaces, small volume and flexible services, which is used for the few traffic convergence or end access node of optical transmission network.

Features
1. Powerful cross-connect capacity
The equipment provides 16/48/1008(VC4/VC3/VC12)cross-connect, and supports multi-direction cross-connect such as unidirectional, bi-directional and broadcasting
Cross-connect function is carried out by a basic CS module and an extended plug-in CS module. It is in accordance with the need to decide whether this extended module is necessary.
It provides up to 4 STM-4 optical interfaces or 10 STM-1 optical interfaces, therefore, it can be configured as complex star network easily.
2. Flexible networking configuration
The OTS-622B provides flexible networking method, and supports multiple topologies including point-to-point, line, ring, star and multi-ring topology.
It provides up to 4 STM-4 optical interfaces or 10 STM-1 optical interfaces, therefore, it can be configured as a complex star network easily.
3. Entire Ethernet function
The OTS-622B provides the standard 10/100M adaptation Ethernet interface, use the GFP/LAPS encapsulation and VC Virtual Concatenation technique.
The port speed can be limited and the transmission bandwidth can be adjusted.
Supply integrated Ethernet Lay 2 switch function with transparent transmission, Switch, Trunk, VLAN, Priority, STP LCAS functions, etc.
4. Flexible data capability
In addition to providing the high-speed 10/100M Ethernet interface and function, it also provides high/low speed V. X (V. 35/V. 24/V. 11) data interface.
The type of the V. X data interface can be set by the software.
The bandwidth (from 2.4Kb/s to 2048Kb/s) can be adjusted flexibly.
5. Abundant interfaces multiple services
The OTS-622B provides the STM-1/4o, STM-1/4e, E3/T3, E1/T1 electrical interface, 10/100M Ethernet interface, EXT-CLK interface, OW interface and the ATM interface.
It provides four extended slots reserved for extending the traffic flexibility.
The equipment has the ability to add and drop128 E1.
6. E1 re-timing function
Supply the E1 re-timing function for timing accurately.
7. Small volume, low power consumption
The OTS-622B is a MSTP product, the dimension is: 482(w)× 88(h)× 297(d)mm.
The typical power consumption is about 30W, it has two kinds of power access: -48V DC or +24V DC power supply and 110/220V AC power supply (embedded module alternatively).
Temperature range: From -5degreeto +45 degree
8. Flexible networking configuration
The OTS-622B provides flexible networking method, and supports multiple topologies including point-to-point, line and ring topology.
9. Smooth upgrading, flexible configuration and easy extending.
The OTS-622B is a STM-1/4 compatible MSTP, can easy upgrade the STM-1 system to/from the STM-4 system by replacing interface modules.
Increased the capability or adjusted the access types of services by increasing or replacing the extended service boards.
10. Perfect protection
The OTS-622B supports multiple network level protection methods, such as MSP (multiplex section protection), SNCP (sub-network connect protection) and clock source protection.
11. Perfect network management system
The OTS-622B family products provide the uniform network management system for centralized operation, administration and maintenance.
Configure and distribute the circuit to ensure the safe operation of the network