Pni Legacy Comm Board Bedienungsanleitung PDF herunterladen (Seite 4)

PNI Corporation 133 Aviation Blvd., Suite 101, Santa Rosa, CA 95403-1084 USA;, Fax: (707) 566-2261

For the most current specifications, please visit our website at: www.pnicorp.com

Page 4 of 42

Table 3: Characteristics

Parameter Minimum Maximum Typical

Operating Characteristics

Current – standby

(Low power mode, no module loaded)

LPM0

14.4 mA RMS

LPM1

7.0 mA RMS

LPM2

5.4 mA RMS

RS-232 Receiver Inputs (CTS, RxD)

Input threshold low 0.6 VDC

Input threshold high 2.0 VDC

RS-232 Transmitter Output (TxD)

Output Voltage Swing

(both transmitter outputs loaded with 3KΩ to GND)

±5 VDC ±5.4 VDC

Output resistance

= V+ = V- =0, output = 2 V)

300Ω 10MΩ

Output short circuit current

(Output = GND)

±60 mA ±30 mA

RS-485 Transceiver Signals (D-, D+)

Input differential threshold -200 mVDC -50 mVDC

Differential output voltage

(R = 27 Ω)

1.5 VDC

Change in magnitude of differential output voltage for

complementary output states

(R = 27Ω or 50Ω)

-0.2 VDC 0.2 VDC

Common mode output voltage

(R = 27Ω or 50 Ω)

3.0 VDC

Change in magnitude of common mode output

voltage for complementary output states

(R = 27Ω or 50 Ω)

0.2 VDC

Output sort-circuit current

or V

= +12 V to – 7 V)

±250 mA

a. The unit is in normal operating mode with the LEDs enabled.

b. The unit is in normal operating mode with the LEDs disabled.

c. The unit is in a Sleep mode and will need to be awakened via the CTS (Wake Up) line.

CommBoard

Specifications

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