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Office Hours
Monday through Thursday, 8:00 am to 5:00 pm Pacific Time; closed Fridays

Broadcast Tools, Inc. will be closed in observance of the following holidays:

New Year’s Day, Thursday, January 1, 2015
Memorial Day, Monday, May 25, 2015
Labor Day, Monday, September 7, 2015
Thanksgiving Day, Thursday, November 26, 2015
Christmas Day, Friday, December 25, 2015

Designed and Assembled in
Washington State, USA

Web site design by:

Product Overview
Discontinued. Please see the STI-II.
Input Levels Send Input Levels:Adjustable, -10 to +8dBu, @ 20K ohms Active balanced, (Send to Telco).

Auxiliary Input Levels:Adjustable, -10 to +8dbu, @ 20K ohms Active balanced, (DTMF receiver).

Output Levels Adjustable, Off to +4dBu, @ 600 ohms , Active balanced (Rec from Telco)
NOTE DTMF Sequences: Multiple digits for both relays and serial strings
Serial: 32 ASCII characters in 16 locations. RS-232, 2400, 9600, 19200, 38400 bps, 8N1. 9600 default
Relays: 14 - Form-C and 2 2PDT gold contacts. 24vdc @ 500ma
Logic Microprocessor, Non-Volatile memory.
Operation Control 15 Turn hybrid null adjustment control
Connectors Input/Output: Removable screw terminals (mate supplied). Phone Line: Modular, RJ-11(cable supplied). RS-232: Female, DB-9, (cable supplied)
Power Requirement 16 18 Vac, 500 - 600 ma. Wall transformer (supplied).
Dimensions 19"W x 1.75"H x 4.50"D. 1-RU.
Weight 3.0 lb.

131 State Street • Sedro-Woolley, WA 98284
Ph: 360.854.9559 • support@broadcasttools.com • Fax: 866.783.1742
Monday through Thursday 8:00 AM to 5:00 PM Pacific Time

Broadcast Tools® is a registered trademark of Broadcast Tools, Inc.
All Sentinel® labeled products are a registered trademark of Broadcast Tools, Inc.
Copyright ® 1989 - 2015 by Broadcast Tools, Inc. All rights reserved.
Pricing and availability are subject to change without notice.