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Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) Customer FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax Support 724-746-0746 • Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, Information PA 15055-1018 • Web site: www.blackbox.com • E-mail: info@blackbox.com...
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Weight — 0.25 lb. (0.11 kg) 2. Introduction The 4-Port RJ-45 Modem Splitter (TL421A) is designed to allow multiple terminals to share a single modem. This passive device is non-powered and transparent to data formats, rates, and protocols. Data received from the modem is transmitted to all attached terminal devices.
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4-Port RJ-45 Modem Splitter (RS-232 on RJ-45) 3. Installation There are no user-configurable settings in the 4-Port RJ-45 Modem Splitter. Simply connect your modem or other DCE device to the Master port, and connect your terminals or other DTE devices to Ports 1–4 on the Modem Splitter. For the GND signal and any signals that flow from the DCE to DTE direction, use Pins 3, 4, 5, 7, and 8.
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724-746-5500 or blackbox.com. About Black Box Black Box provides an extensive range of networking and infrastructure products. You’ll find everything from cabinets and racks and power and surge protection products to media converters and Ethernet switches all supported by free, live 24/7 Tech support available in 30 seconds or less.