ST TC1
User Manual: ST-TC1
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STICK-ON SERIES ® Model ST-TC1 Telephone System Coupler ANYWHERE YOU NEED... • • • • To Simulate a Telco CO Line To Add Radio Control or Paging to KSU Contact Closure when Line is Selected Audio Input / Output from Telephone Switching Unit You Need The ST-TC1! The ST-TC1 is part of the STICK-ON series from Radio Design Labs. The durable adhesives permit quick, permanent or removable mounting nearly anywhere or it may be used with RDL’s racking accessories. APPLICATION: The ST-TC1 is primarily intended to connect to an on-site telephone system switching (KSU). Connections from the ST-TC1 go into the KSU as if the ST-TC1 was an incoming phone line. When the KSU seizes the line to the ST-TC1, a relay contact closure is provided which can be used to control a variety of equipment, such as a paging system or radio system. The closure is maintained as long as the line is seized. A 600 Ω transformer-isolated audio feed is available for audio to or from the telephone switching unit. The ST-TC1 will pass DTMF audio from a telephone keypad or other DTMF generating device. The ST-TC1 may be utilized to add paging zones or a radio system interface to a telephone system. When any instrument in the telephone system picks up the line associated with the ST-TC1, the relay closes to activate the radio or paging function, and the audio spoken into the handset appears at the BAL-AUDIO terminals. The ST-TC1 can not be connected to a phone line that has ringer voltage present. The ST-TC1 can be used in conjunction with RDL’s ST-VOX1 modules to provide two-way communication. The ST-VOX1 will provide the necessary push-to-talk function to key the two-way communications systems. RDL • 659 N. 6th St. • Prescott, AZ., USA 86301 • (928) 443-9391 • FAX (928) 443-9392 • www.rdlnet.com STICK-ON SERIES ® Installation/Operation EN55103-1 E1-E5; EN55103-2 E1-E4 Typical Performance reflects product at publication time exclusive of EMC data, if any, supplied with product. Specifications are subject to change without notice. Model ST-TC1 Telephone System Coupler Incoming Lines from Phone Company TELEPHONE SYSTEM COUPLER PWR On-Site Telephone Switching System BAL AUDIO "LINE" TO PHONE EQUIP LINE 1 LINE 2 LINE 4 LINE 5 LINE 6 Use the BAL AUDIO terminals to either connect to the line-level input or output of audio devices such as a paging system, radio, or a monitor. Connection to Phone Instruments 1 2 3 1 2 3 1 2 3 4 5 6 4 5 6 4 5 6 891-0023J WARNING: Do NOT connect the ST-TC1 directly to a telephone-company phone line or any phone line with ringer voltage present. In this example, selecting LINE 6 on any instrument will activate the relay inside the ST-TC1 and will make the BAL AUDIO connection available to that instrument. If the BAL AUDIO terminals on the ST-TC1 are connected to a paging input of an amplifier system, then any phone instrument may initiate an audio page by selecting LINE 6 and then speaking. TYPICAL PERFORMANCE Line Connection: Audio In/Out Impedance: Switching Contacts: Maximum Switching Power: Supply Input: Dimensions: Note: PWR Use relay contacts to trigger paging or radio system. Balanced Audio Input or Output LINE 3 TELEPHONE SYSTEM COUPLER BAL AUDIO "LINE" TO PHONE EQUIP Use relay contacts to trigger paging or radio system. Balanced Audio Input or Output In this example, The ST-TC1's relay will energize when the phone handset is taken off hook. The relay will de-energize when the handset is returned to the on-hook position. DTMF audio can be passed through the BAL AUDIO connection from the phone keypad or other DTMF generating devices. Simulated telco central office line to feed telephone system. 600 Ω balanced Double-Pole, Double-Throw 60 W (220 Vdc, 125 Vac, 2 A) 24 to 33 Vdc @ 50 mA, Ground-referenced Height: 1.55 in 3.94 cm Width: 3.00 in 7.62 cm Depth: 0.65 in 1.65 cm Do not connect ST-TC1 directly to a telephone-company phone line, or any phone line that has ringer voltage present. Radio Design Labs Technical Support Centers U.S.A. (800) 933-1780, (928) 778-3554; Fax: (928) 778-3506 Europe [NH Amsterdam] (++31) 20-6238 983; Fax: (++31) 20-6225-287
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