Dascom DP-520 Manual del operador descargar pdf (Pagina 16)

DB-9 Pin Name Description (refers to PC) RJ12 Pin

3 TxD Serial Data Output 3

2 RxD Serial Data Input 4

4 DTR Handshaking Output 2

6 & 8 CTS & DSR Busy Input 5

5 SGND Signal Common 0V 6

The wake-up input (pin 2 of the RJ12) can be driven by a normal RS-232 handshaking output and activates the

printer when a positive voltage ('space' condition) is asserted. Connecting it to the PC DTR signal wakes the printer

when the COM port is 'opened'. It may alternatively be tied to a positive voltage in the range +3V -> +12V to keep

the printer awake permanently. In this case, the printer will 'attempt' to go to sleep if the normal inactivity time-out

elapses, but will merely reset and then re-start. This behavior may be avoided by switching off the sleep period

timeout.

EMC STATEMENT

The DP-510 and DP-520 printers are fully EMC (Electro-Magnetic Compatibility) compliant and are CE marked

accordingly. A Declaration of Conformity, in accordance with the EMC Directive 89/336/EEC (and as amended) is

available on request.

EMC Caution

System EMC compliance remains the responsibility of the system designer. It is recommended that shielded cables

are used; grounding arrangements will depend on the application.

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Dascom DP-520 Manual del operador Pagina 16