Black Box SM720C Quick Start Manual

Rear interface switch cards

Rear Interface Switch Cards

CUSTOMER SUPPORT INFORMATION

Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)

FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746

Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018

Web site: www.blackbox.com • E-mail: info@blackbox.com

SEPTEMBER 2000

SM720C

SM721C

SM722C

SM723C

SM724C

Table of Contents

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Page 1 Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.com...
Page 2 Connectors — SM720C: (3) DB25 female; SM721C: (3) M/34 female; SM722C: (3) DB15 female; SM723C: (3) RJ-11; SM724C: (3) RJ-45 Leads Supported — SM720C: 25; SM721C: 34; SM722C: 15; SM723C: 6; SM724C: 8 Power — From the rack chassis Size —...
Page 3 REAR INTERFACE SWITCH CARDS Description Rear cards work with front cards to manage lines. The front card contains the switching and patching circuitry; the rear card contains the cable interface circuitry. The front card and the rear card mate when they are inserted into a rack (see the illustration below).
Page 4 Rear cards available include: Model Application # of Slots Connectors SM720C A/B switch (and patch) A, B, Common: DB25F SM721C A/B switch (and patch) A, B, Common: V.35F SM722C...
Page 5 REAR INTERFACE SWITCH CARDS Installation To Install a Rear Card: 1. First, you’ll need to insert the corresponding front card and tighten the screws. You don’t need to fill all slots in a rack or fill slots in any particular order. 2.

Sm721cSm722cSm723cSm724c