Wellfleet SYNC 34001 Dual Sync Network Module P107287RJ Bay Networks Router

Wellfleet SYNC 34001 Dual Sync Network Module P107287RJ Bay Networks Router

The Wellfleet SYNC 34001 is a dual-port synchronous serial WAN network module designed for use in Wellfleet Communications router chassis. It provides two independent synchronous serial interfaces, allowing the host router to connect to wide-area network circuits such as leased lines and frame relay services. The board carries manufacturer part number P107287RJ and is labeled Artwork/Hardware Revision C, made in the U.S.A.

Specifications & What's Included

• Model: SYNC 34001
• Part Number (MPN): P107287RJ
• PCB Part Number: 107290 (PWB P/N per silkscreen)
• Hardware Revision: A/W Revision C
• Manufacturer: Wellfleet Communication Inc.
• Country of Manufacture: U.S.A. (per PCB silkscreen)
• Number of Synchronous Serial Ports: 2
• Port Connectors: DB26 (high-density, one per port)
• Per-port LED indicators: green and red status LEDs on front panel
• Form Factor: Plug-in module / card for Wellfleet router chassis
• Included: Module only — no cables, transceivers, or chassis

Applications

Wellfleet Communications was a pioneer in enterprise routing through the late 1980s and early 1990s, and their modular router platforms were widely deployed in corporate and government networks of that era. The company merged with SynOptics in 1994 to form Bay Networks, so Wellfleet hardware is also commonly referenced under the Bay Networks name. The SYNC 34001 is a WAN interface module that plugs into a Wellfleet router backplane slot, giving the router two synchronous serial WAN ports. Synchronous serial interfaces of this type were the standard way to connect routers to telco-provided WAN circuits — T1/fractional T1, 56K leased lines, X.25, and frame relay — using external CSU/DSU equipment and V.35 or RS-232 serial cables. This module type was used in enterprise and campus networks requiring multi-site WAN connectivity in an era when dedicated leased lines were the backbone of corporate networking. Today, this hardware is sought primarily for maintaining legacy Wellfleet and Bay Networks router installations, lab recreation of period network environments, and collectors of early enterprise routing equipment.