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IMPORTANT: This is a SPECIAL ORDER item and may take additional shipping time.
IMPORTANT: This is a SPECIAL ORDER item and may take additional shipping time.
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The 422LP9R is a port - powered two - channel RS - 232 to RS - 422 converter. It converts TD and RD RS - 232 lines to balanced RS - 422 signals. The unit is powered from the RS - 232 handshake lines DTR an d RTS. One of these handshake lines must be asserted (high) in order to power the unit (See Table 1). The RS - 422 driver is enabled when RTS is asserted. Therefore, RTS must be asserted in order to transmit data. The RS - 422 receiver is always enabled. If DT R is always asserted and the RTS is used to control the driver, the 422LP9R can be used as a RS - 232 to RS - 485 4 - wire converter. To insure reception, it is recommended that DTR is asserted. In order to maximize the amount of power available to the RS - 422 d river, the RS - 232 handshake lines are not looped back (tied together). As a result the following handshake lines will appear as disasserted (low): CTS, DCD, and DSR. Care should be taken to insure that any software being used doesn't require any of these handshake lines be asserted. If existing software requires any of the handshake lines to be asserted, you can loop back the required handshake lines in your cable. |
Adapter Type: | Serial |
Connector Type on First End: | RS-232 Serial |
Connector on First End Details: | 1 x RS-232 Serial |
Connector Type on Second End: | RS-422 Serial |
Connector on Second End Details: | 1 x RS-422 Serial |
Environmentally Friendly: | Yes |
Country of Origin: | United States |
WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov. |
Product images may differ from actual product appearance.
- This item cannot be shipped to PO Boxes.
- This item can be shipped only within the U.S.
Special Order Item
This item ships directly from the manufacturer and is not stocked in our warehouse. If stock is available at the manufacturer, the item will ship directly to you, usually within 7 - 15 business days.
Once the order has been sent to the manufacturer it can no longer be canceled.
If payment is made via credit card it will be charged before the order is sent to the manufacturer.
You must contact the manufacturer directly regarding returns and defective items.
We will contact you by email if the item is sold out or backordered (and we were unable to update the site before you placed the order) or if the item will be delayed longer than expected.
We have no control over the speed of the manufacturer's order processing, or whether they will honor your request to ship the item by any particular method.
- UPC: 889488075287
- Mfr's Part #: 00WG630