CISCO - 4PORT OC3/STM1 PACKET OVER SONET/SDH LINE CARD SINGLE-MODE KEY FEATURES - FORM FACTOR : PLUG-IN MODULE - CABLING TYPE : FIBER OPTIC - DATA LINK PROTOCOL : SONET/SDH CONDITION : REFURBISHED. AVAILABILITY : IN STOCK. WARRANTY : 30 DAYS.
30 Day Warranty Included. Extended warranty is available. Contact your sales rep for more information.