Rs 232- Serial Interface - DCA Intertel 2000 Technical Manual

Table 6 shows the pinout for connector J3 (10 way flat cable), used to connect the
printer to the host computer.
TABLE 6 - TTL SERIAL INTERFACE CONNECTOR J3
PIN DIRECTION
01 output
02 output
03 output
04 output
05 output
06 input
07 output
08 input
09 output
10 output

3.2 RS 232- Serial Interface

The printer's serial TTL port is adapted to RS 232 C Standard interface. The pinout is
shown in Table 7.
TABLE 7 - RS-232C SERIAL INTERFACE CONNECTOR (DB 9)
Connection from Serial Cable Male to Female
01 ---------------------
02 RX ---------------------
03 TX ---------------------
04 DTR ---------------------
05 GND ---------------------
06 DSR ---------------------
07 RTS ---------------------
08 CTS ---------------------
09 RI ---------------------
DCA Intertel
FUNCTION
+Vp for suppl. ext. dev. Imax=200mA
+Vp for suppl. ext. dev. Imax=200mA
+5V for suppl. ext. dev. Imax=20mA
+5V for suppl. ext. dev. Imax=20mA
TXD
RXD
DTR
DSR
GND
GND
01
03 TX
02 RX
06 DSR
05 GND
04 DTR
08 CTS
07 RTS
09 RI
17 DCA Intertel