12 TASCAM CD-RW900MKII2 − Features of the CD-RW900MKIId SYNC REC key Use this key to turn synchronizedrecording on and off before starting to record (see“Synchronized recording” on page 26 for details).f INPUT SELECT Use this key to select the differentaudio inputs and the input combinations (see “Inputselection” on page 24 for full details).g KEYBOARD jack An IBM PC-compatible keyboardwith PS/2 interface can be connected to this terminal toenable certain operations of the CD-RW900MKII withthe keyboard. Title input operations, in particular, canbe performed with greater efficiency.Rear panelh ANALOG IN (UNBALANCED) (L, R) These RCAjacks accept analog audio signals from suitably-equipped units (at –10 dBV).j ANALOG OUT (UNBALANCED) (L, R) These RCAjacks output analog audio signals (at –10 dBV levels) tosuitably-equipped units.k DIGITAL COAXIAL (IN, OUT) These two RCA jacksaccept and output digital audio in standard consumerformat (SPDIF).l DIGITAL OPTICAL (IN, OUT) These two TOSLINKoptical connectors accept and output digital audio usingoptical fiber connectors.; AC IN jack Connects the power cable supplied.