SATO GT424 - Manual (Page 94)

Section 5: Interface Specifications
Page 5-12 GT Series Operator’s Manual
5.13 DRIVER PROTOCOL
This transmission protocol responds the status from the printer by using Enquire commands from
the host to check the printer status.
The status is immediately responded after the Enquire command has been received.
When using this protocol, the receive buffer should be set to Multi-Job Buffer.
Pin Assignments
Caution!
In the connections, it may be necessary to loop (usually kept "High) CS and RS on the host side
depending on the type of host. Therefore, make sure to re-check the host before use.
Input/Output Signals
1) DB-25 P 2) DB-9P
Printer Host Printer Host
FG 1 1 FG FG 1
SD 2 3 RD SD 2 2 RD
RD 3 2 SD RD 3 3 SD
RS 4 5 CS RS 4 8 CS
CS 5 4 RS CS 5 7 RS
DR 6 20 ER DR 6 4 ER
SG 7 7 SG SG 7 5 SG
ER 20 6 DR ER 20 6 DR
Pin no. Signal Type Direction Contents
1 FG - Frame Ground
2 SD Output Send Data
3 RD Input Receive Data
7 SG - Signal Ground