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USB-SSR08 User's Guide Installing the USB-SSR08

Unpacking the USB-SSR08

As with any electronic device, you should take care while handling to avoid damage from static

electricity. Before removing the USB-SSR08 from its packaging, ground yourself using a wrist strap or by

simply touching the computer chassis or other grounded object to eliminate any stored static charge.

If your USB-SSR08 is damaged, notify Measurement Computing Corporation immediately by phone, fax, or

email. For international customers, contact your local distributor where you purchased the USB-SSR08.

 Phone: 508-946-5100 and follow the instructions for reaching Tech Support.

 Fax: 508-946-9500 to the attention of Tech Support

 Email: [email protected]

Installing the software

Refer to the Quick Start Guide for instructions on installing the software on the Measurement Computing Data

Acquisition Software CD. This booklet is available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software-

Quick-Start.pdf.

Installing the USB-SSR08

Before you connect the USB-SSR08 to your computer, configure the hardware and then connect the external

power supply that was shipped with the device. You can connect up to four MCC USB Series products in a

daisy chain configuration to a single USB 1.1 port or USB 2.0 port on your computer.

Configuring the hardware switches

The USB-SSR08 has three on-board switches that you set to configure the I/O module type, relay logic polarity,

and relay power-up state. Configure these switches before you connect the external power supply to the USB-

SSR08. Factory-configured default settings are listed in . Refer to Fi for the location of each

switch.

Table 2-1

Table 2-1. Default switch configuration

gure 3-1

Board label Description Default setting

IN OUT (S1)

Configures the I/O type per module group for

input or output.

OUT (output)

NON INVERT INVERT (S2)

Configures the relay logic parity per module

group for invert or non-invert logic.

NON INVERT

(active low)

P/UP P/DN (S3)

Configures the power-up state of output

relays for pull-up or pull-down.

P/UP (Pull-up)

Each DIP switch sets the configuration of one module group. The switch labeled CL configures modules 1

through 4, and the switch labeled

CH configures modules 5 through 8.

No function

Configures modules 5-8

Configures modules 1-4

Figure 2-1. Typical board switch

You can use InstaCal to read the current configuration of each switch.

2-2

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 22 23

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