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Rear Panel and Connector Diagrams Instrument Overview
3-44 MS278XB OM
Table 3-11. Index 7: 25-pin Parallel Printer Connector Pinout Diagram
Pin Name Description
1 Strobe Strobe signal drops TTL low when data is being sent to printer
2 Data0 Data signal to printer
3 Data1 Data signal to printer
4 Data2 Data signal to printer
5 Data3 Data signal to printer
6 Data4 Data signal to printer
7 Data5 Data signal to printer
8 Data6 Data signal to printer
9 Data7 Data signal to printer
10 Acknowledge Acknowledge signal drops TTL low when data is received by printer
11 Busy TTL high when printer is busy
12 Paper End TTL high when printer is out of paper
13 Select TTL high signals that the printer is online
14 Auto Feed TTL high signals an auto feed
15 Error TTL low signals a printer error
16 Init TTL low initializes the printer
17 Select In TTL high sets printer offline
18 to 25 Ground Electrical reference ground
Table 3-12. Indexes 4,5, 11 to 18, and 21 to 24: BNC Connector Pinout Diagram
Pin Name Description
1 Center Pin Carries data or signal
2 Shield Ground return or shield