The Metrodata PA1000 converts data from byte-oriented HDLC, as used on Packet over Sonet (POS) interfaces, to bit-oriented HDLC as found on HSSI interfaces.

The PA1000 serves two purposes:

• it enables connection between a Packet over Sonet (POS) based router and a HSSI based router
• it enables a Packet over Sonet based router to be connected to a satellite modem and to operate at data rates below 155 Mbps

The PA1000 provides a solution for satellite operators wishing to use high performance Packet over Sonet (POS) based routers without the need to use valuable chassis slots for low speed HSSI serial interfaces. In addition, the PA1000 supports non-standard data rates and asymmetric operation, thus providing a flexible solution for the user.

The PA1000 rate-adapts by stripping flags out of the data stream and transporting only the actual packet data. It is transparent to packet payload and may operate with any protocol that both the Packet over Sonet (POS) and HSSI devices support, such as PPP and Frame Relay.

The PA1000 provides the system integrator with a simple, convenient and economic solution for the interconnection of modern high speed routers fitted with Packet over Sonet (POS) interfaces and older legacy routers with HSSI interfaces.

Product Features

1. Variable bit-rate for Packet over Sonet (POS) routers
2. Connect Packet Over Sonet (POS) core networks to legacy HSSI routers
3. Router to satellite connections at up to 90 Mbps HSSI
4. Asymmetric data rates: future-proofed satellite bandwidth
5. Hardware - based Packet rate and Interface adapter
6. Ease of migration for ISPs to develop Packet over Sonet (POS) router core within existing HSSI structure

Application Diagram

Specifications

Ordering Information