Tally dascom 1125, Usb interface, Serial interface – Dascom 1125 User Guide User Manual

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Tally Dascom 1125

USB Interface

The USB interface conforms to the Universal Serial Bus 2.0 Specifications. It supports the Full Speed mode at

12 Mbps. It uses the “B” type USB connector.

Serial Interface

Serial RS-232C Interface Pin Assignment

Pin

Signal Symbol Signal Name

Signal

Transmission

1 CG

Chassis

Ground

—

2 TXD

Send

Data

OUT

3 RXD

Receive

Data

RTS

Request to Send

OUT

7 SG

Signal

Ground

—

20 DTR

Data

Terminal

Ready OUT

25 +5V

Power

—

Serial RS-232 Connector Diagram