Digital GP-2401 Series User Manual Page 33

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Chapter 2 - Specifications
GP-2401/2501/2601 Series User Manual
2-8
Pin Assignments Pin # Signal Name Condition
1 GND Ground
2 RESERVE Reserved
3 PDB5 Data Signal
4 PDB4 Data Signal
5 PDB3 Data Signal
6 GND Ground
7 SLCT Select Status (Input)
8 PDB0 Data Signal
9 PSTB
Strobe Signal (Output)
*1
10 BUSY Busy Signal (Input)
11 PDB7 Data Signal
12 PDB6 Data Signal
13 GND Ground
14
ERROR Printer Error (Input)
*1
15 GND Ground
16 PDB2 Data Signal
17 PDB1 Data Signal
18 PE
Paper Runout
*1
19 INIT Initialization Signal (Output)
20 GND Ground
2.3.2 Printer Interface
When connecting a printer, use Digital’s printer cable (PSM-PRCB00).
1
10
20
11
When creating your own cable, follow the instructions listed below:
<With RS-422>
• The following pairs of pin numbers must be connected to each other.
#18 (CSB) <—> #19 (ERB)
#21 (CSA) <—> #22 (ERA)
When connecting the RS-422 cable and the #9 (TRMX) and #10 (RDA) points,
a termination resistance of 100
is added between RDA and RDB.
When making a cable for a Memory Link system, be sure to use a 4-wire type.
<With RS-232C>
Do not use the following pins: 9 (TRMX), 10 (RDA), 11 (SDA), 15 (SDB), 16
(RDB), 18 (CSB), 19 (ERB), 21 (CSA), 22 (ERA).
• The #1 (FG) terminal should only be connected if it is required by the device being
connected to.
• This unit’s serial port is not isolated, therefore, it is important that
you connect the SG (Signal Ground) terminals. If this is not done,
the RS422 circuit may be damaged.
• Pin 14 (VCC) DC5V output is not protected. To prevent damage or
unit malfunction, be sure to use only the designated level of current.
*1 Not available with GP software.
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