9 specifications – B&B Electronics DSC-200_300 - Manual User Manual

Page 42

9 Specifications

Bus interface:

PCI, 32-bit bus, Universal Signalling Voltage
IBM-compatible computers

Dimensions:

approx. 4.725" x 3.5"

Serial ports

Controller:

16550 with 16-byte FIFOs

Interface:

Two female D-9 connectors

Transceivers:

MAX-3076E or compatible

Differential output:

2V min. with 50-ohm load (RS-422)
1.5V min. with 27-ohm load (RS-485)

Output rise/fall time:

15ns max.

Differential input
threshold:

-0.2V min., -0.05V max.

Input resistance:

96k ohm min..

Input current:

-100 microAmps min., +125 microAmps.

Power requirements

+5 volts:

approx. 250 mA

Temperature:

operating 0° to 70°
storage -50° to 80°

Humidity:

10% to 90%

Quatech DSC-200/300 User's Manual