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Nortel - Expansion module - serial - serial
The ARN Serial Adapter Module Upgrade adds a synchronous serial port to the Baystack ARN router. The ARN Serial Adapter can be placed in either of the 2 WAN adapter slots of the router. It supports V.35 RS-232 RS-449/422 balanced RS-530 and X.21. Using either internal or external clocking serial interfaces the adapter can be operated at speeds from 1200 bps to 2.048 mbps full duplex and support the use of T1 and E1 services. It can also be used to integrate remote site SNA devices such as SDLC and BSC controllers allowing them to share wan access with a site's LAN traffic. The adapter provides support of binary synchronous communications (BSC) pass-through, allows customers to converge BSC 3270 device traffic such as that of an automated Teller machine onto a high-performance multiprotocol IP backbone eliminating costly dial-up BSC links.
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