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SHM-NPR PLUS

3. Referring to Figure 3-1 below, set the Driver’s

transmit-carrier strap (jumper) to suit your
application: ON for carrier constantly on,
CNTR for carrier controlled by RTS.

4. Press the two halves of the cover back together.

5. Plug the SHM-NPR Plus directly into the DTE’s

RS-232 serial port.

Figure 3-1. Location of the transmit-carrier strap (jumper).

CNTR

CARRIER

GND

LINE

Содержание ME739A-F-R2

Страница 1: ...the U S Call 877 877 BBOX outside U S call 724 746 5500 FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mailing address Black Box Corporation 1000 Park Drive...

Страница 2: ...operated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measu...

Страница 3: ...abo s tano mojado o cerca de una alberca etc 6 El aparato el ctrico debe ser usado nicamente con carritos o pedestales que sean recomendados por el fabricante 7 El aparato el ctrico debe ser montado a...

Страница 4: ...contactos y recept culos donde salen del aparato 14 El equipo el ctrico debe ser limpiado nicamente de acuerdo a las recomendaciones del fabricante 15 En caso de existir una antena externa deber ser l...

Страница 5: ...4 SHM NPR PLUS TRADEMARKS USED IN THIS MANUAL Any trademarks mentioned in this manual are acknowledged to be the property of the trademark owners...

Страница 6: ...rt on next page Transmission Line 2 wire unconditioned telco type line or single coaxial cable Transmission Level 0 dBm Transmission Controls DCD always on DTR can control carrier DSR turns on immedia...

Страница 7: ...ain relief Temperature Tolerance 32 to 122 F 0 to 50 C Humidity Tolerance Up to 95 noncondensing Enclosure High impact plastic Power 6 VDC 25 milliwatts from Pin 2 4 or 20 of the RS 232 interface Size...

Страница 8: ...igure 2 1 below shows a typical application You can strap the SHM NPR Plus s transmit carrier to be constantly on or to follow be controlled by the DTR signal In controlled operation the local SHM NPR...

Страница 9: ...operates without a power supply transformer To operate properly it must at least be connected to a DTE s Transmit Data TD Pin 2 Receive Data RD Pin 3 and Signal Ground SGND Pin 7 lines In compliance...

Страница 10: ...ck The SHM NPR Plus isn t polarity sensitive It doesn t matter which of the LINE terminals you attach shield to and which one you attach the center wire to Don t attach anything to the SHM NPR Plus s...

Страница 11: ...per to suit your application ON for carrier constantly on CNTR for carrier controlled by RTS 4 Press the two halves of the cover back together 5 Plug the SHM NPR Plus directly into the DTE s RS 232 se...

Страница 12: ...ent and accurate assistance if you have a complete description including the nature and duration of the problem when the problem occurs the components vehicle devices etc involved in the problem any p...