Epson TM U200D Technical Reference - Page 162
RS-485 Serial Interface Circuit Board Diagram
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RS-485 Serial Interface Circuit Board Diagram TM-U200D/U200PD/ Technical Manual R9 R8 R2 TO HOST CN1 FG SD/SD1 RD/SD2 RS/RD1 /RD2 DR/INIT1 SG /DR1 /DR2 /CS1 /CS2 1 2 3 4 5 6 7 8 9 10 11 12 FG 13 14 15 16 17 18 19 ER 20 21 22 23 24 INIT2 25 SHELL 0 FG R1 SD2 SD1 RD2 RD1 SG DR2 DR1 CS2 CS1 R13 CS1 R10 CS2 DR2 DR1 RD1 RD2 R6 R3 SD2 SD1 R12 U2 CS1 8 CS2 7 6 5 R5 U1 8 7 6 5 TP2 +5V 1 + 5 2 CTS V 3 DR 4 SG +5V CTS R17 1 DR R16 2 RD R18 3 SD +5V 4 SG R11 R4 SG SD RD SG SG +5V + 5 V TP1 R19 R14 R15 R7 TO MAIN BOARD CN2 C5 CTS SG DR SG SG SG SD RD SG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 DK 1 DK S PG PG +24V +24V PG HOST_RTS CTS DET RTS CLKIN/DTR CLKREQ SG +5V DK 2 DK G DK P PG +24V +24V PG SG SD RD (RES) #25_RESET DSR_RESET #RESET SG Rev. B A-14
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