CyberResearch UCERB 24 Manual de usuario descargar pdf (Pagina 17)

UCERB 08 User's Guide Functional Details

External power connectors

The UCERB 08 has two external power connectors labeled POWER IN and POWER OUT on the

enclosure. The POWER IN connector is labeled PWR IN on the board, and the POWER OUT connector is

labeled

PWR OUT on the board.

Connect the POWER IN connector to the supplied +9 V external power supply. External power is

required to operate the UCERB 08. The POWER OUT connector lets you power additional daisy

chained CyberResearch USB DIO products from a single external power supply. Depending on your load

requirements, daisy chained products may require a separate power supply. Refer to "Power limitations

using multiple UCERB 08 devices" on page 3-4 for more information.

USB LED

The USB LED indicates the communication status of the UCERB 08. It uses up to 5 mA of current and

cannot be disabled. Ta explains the USB LED function. ble 3-2

Table 3-2. USB LED Illumination

USB LED

illumination

Indication

Steady green The UCERB 08 is connected to a computer or external USB hub.

Pulsing green

Initial communication is established between the UCERB 08 and the computer, or data is

being transferred.

PWR LED

The UCERB 08 incorporates an on-board voltage supervisory circuit that monitors the external 9 V

power. If the input voltage falls outside of the specified range, the PWR LED shuts off.

explains the function of the PWR LED.

Table 3-3

Table 3-3. PWR LED Illumination

PWR LED

illumination

Indication

Steady green External power is supplied to the UCERB 08.

Off

Power is not supplied by the external supply, or a power fault has occurred. A power fault

occurs when the input power falls outside of the specified voltage range of the external supply

(6.0 V to 12.5 V).

Invert/Non-invert switch (S1)

The Invert/non-invert switch (S1) sets the relay control logic per relay bank to either inverted or non-

inverted. By default, switch S1 is configured for non-invert (see ). Figure 2-3

NON-INVERTINVERT

Figure 3-2. Switch S1 default configuration

The switch labeled CL configures relays 1 through 4, the switch labeled CH configures relays 5 through 8.



NON-INVERT: when "0" is written or read back via the USB bus, the relays are not energized.

 INVERT: when "0" is written or read back via the USB bus, the relays are energized.

Switch settings do not affect the power-on condition. Use InstaCal to read the current logic setting for

each module group.

3-2

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 29 30

Comentarios a estos manuales

Sin comentarios

CyberResearch UCERB 24 Manual de usuario Pagina 17

Comentarios a estos manuales

Relacionado con productos y manuales para Redes CyberResearch UCERB 24