40959201TX Rev.1 40 /5. INTERFACE SPECIFICATIONS5.1 Centronics-compatible Parallel Interface Specifications1) Connectors and cable(a) ConnectorsPrinter side:36-pin receptacle 57-40360 (Amphenol or Daiichi Electronics) or equivalentCable side:36-pin plug 57-30360 (Amphenol or Daiichi Electronics) or equivalent, or plug 552274-1(Amphenol) cover 552073-1 (Amphenol) or equivalent(b) Cable Use a cable less than 6 ft (1.8 m) in total length.(A shielded cable is required, and use of twisted-pair wires is recommended for noiseprevention.)2) Parallel interface signalsPin No. Signal Direction Description1 STROBE To printer Samples input data when changing fromlow level to high level.2 DATA BIT 1 To printer Input data: High level indicates “1” and3 DATA BIT 2 low level “0”.4 DATA BIT 35 DATA BIT 46 DATA BIT 57 DATA BIT 68 DATA BIT 79 DATA BIT 810 ACKNOWLEDGE From printer Indicates character input completion, orfunction operation end, at low level.11 BUSY From printer Indicates data cannot be received at highlevel.Data can be input at low level.12 PAPER END From printer High level indicates paper end.13 SELECT From printer High level indicates select (on line)condition.14 AUTO FEED To printer16, 33 0 V — Signal ground.17 CHASSIS — Frame ground.GROUND18 +5 V From printer +5 V supply (50 mA maximum)19 to 30 0 V — Twisted pair return(for pin Nos. 1 to 11)31 INPUT-PRIME To printer32 FAULT From printer This signal goes from high to low levelwhen paper runs out.(Possible to indicate error and Off-Linestate).