Digi DC-190 Installation Manual download pdf (Page 39)

RS-232 Specifications 35

8.0 RS-232 Speciﬁcations

8.1 RS-232 Ports

The DC-190 is equipped with three RS-232 ports for connecting devices such as a force balance, bar code laser/

pen scanner, PC, or printer (bar code, tape, or ticket). SPEC 0 (bit 1), SPEC 3, and SPEC 8 through SPEC 15 are

used when connecting peripheral devices.

SPEC 13, bits 2, 1, and 0 determine which devices are connected to the 9-pin D-sub connector and 8-pin DIN

connector 2. Table 8-1 shows the SPEC bit number and the corresponding eight- and nine-pin connector

designation.

SPEC 8 through SPEC 11 are used to conﬁgure the baud rate, data length, parity, and stop bits for each device

installed in the system. As shown in Table 8-1, SPEC 8 and SPEC 9 are always conﬁgured with a force balance

while SPEC 10 and SPEC 11 are conﬁgured with a printer. Therefore, if a PC is connected in place of either the

force balance or printer, those SPECs that follow the force balance or printer are now used for the PC.

For example, if you wanted to connect a PC on the 9-pin D-Sub connector and a TM-U200 printer to the 8-pin

DIN connector, SPEC 13 (bits 2, 1, and 0) would be conﬁgured to 011. If the RS-232 settings for the PC are 9600

baud rate, eight-bit data length, no parity and one stop bit, SPEC 8 would be conﬁgured to 0111 and SPEC 9

would be conﬁgured to 0100. If the RS-232 settings for the printer are 4800 baud rate, seven-bit data length, even

parity and one stop bit, SPEC 10 would be conﬁgured to 1010 and SPEC 11 would be conﬁgured to 0011. SPEC

3 would need to be conﬁgured to 0011 or 0010.

See Section 10.3 on page 52 for connector pinout information.

SPEC 13, Bits 2, 1, 0 9-Pin D-Sub Connector 8-Pin DIN Connector

000 Printer

SPEC 10 and 11

Force balance

SPEC 8 and 9

001 Force balance

SPEC 8 and 9

Printer

SPEC 10 and 11

100 PC

SPEC 10 and 11

Force balance

SPEC 8 and 9

101 Force balance

SPEC 8 and 9

SPEC 10 and 11

010 Printer

SPEC 10 and 11

SPEC 8 and 9

011 PC

SPEC 8 and 9

Printer

SPEC 10 and 11

Table 8-1. SPEC 13 Conﬁguration with Eight- and Nine-Pin Connector Designation

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 66 67

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Digi DC-190 Installation Manual Page 39

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