_ DEC-O-LOG for DM300 _ DOL, DM300-F001, Composite Link Problems, Aug 90 DM300-F001 AUG 1990 - PROBLEM: Composite link problems with data compression, dropping links to adjacent MUXserver 300/310 and DECmux 3XXs, numerous problems with Async ports. FIELD EFFECTIVITY: All DM308-AA/-AB and DM316-AA/-AB/-BA/-BB at revision E01 or lower. QUICK CHECK: If E140 on 54-18590-01 is a 23-236E7-00, FCO is not required. The DEC on-site labor charge will be the time required to install and test the FCO at the then current hourly rate. FCO KIT ORDERING: EQ-01580-02 FCO, Parts FA-04909-02 FCO Document (European Version Also Available)