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User Manual for BOGEN models including: BOGEN, Telephone, Interface, Module, TEL1S
Jan 31, 2021 —
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DocumentDocumentTEL1S Telephone Interface Module Features · Loop start trunk interface · Ground start trunk interface · Page port interface · Transformer-isolated · Gain/Trim control · Output signal gating · Gating threshold and duration adjustments · Variable threshold limiter · 4 Levels of available priority · Can be muted from higher priority modules · Can mute lower priority modules © 2003 Bogen Communications, Inc. Specifications subject to change without notice. 54-2055-01D 0808 Module Installation 1. Turn off all power to the unit. 2. Make all necessary jumper selections. 3. Position the module in front of desired module bay opening, making sure that the module is right-side up. 4. Slide the module onto the card guide rails. Make sure that both the top and bottom guides are engaged. 5. Push the module into the bay until the faceplate contacts the unit's chassis. 6. Use the two screws included to secure the module to the unit. Jumper Selections Bus Assignment This module can be set to operate so that the input signal can be sent to the main unit's A bus, B bus, or both buses. Interface Type Dry Loop - Use with page ports. Activated by audio activity on the telephone line. Loop Start - Use when interfacing to PBX loop start trunks or dedicated telephones. Requires connection of external power supply (see Block Diagram for more info). Ground Start - Use only on PBX ground start trunks. Requires connection of external power supply and connection to PBX ground. Priority Level* INTERFACE TYPE Loop GND Dry Start Start Loop J7 J7 J7 J7 J2 J2 J2 J2 BUS ASSIGNMENT Bus A B Both J5 J5 J5 Mono J5 J4 J9 J6 WARNING: Turn off power to unit and make all jumper selections before installing module in unit. This module can respond to 4 different levels of priority. Priority 1 is the highest priority. It mutes modules with lower priorities and is never muted. Priority 2 can be muted by Priority 1 modules and mutes modules set for 3 or 4. Priority 3 is muted by either Priority 1 or 2 modules and mutes Priority 4 modules. Priority 4 modules are muted by all higher priority modules. 1 2 (Highest) 3 4 (Lowest) J4 J9 J6 J4 J9 J6 J4 J9 J6 J4 J9 J6 PRIORITY LEVEL Limiter (Limit) * The number of priority levels available is determined by the amplifier the modules are used in. Sets the signal level threshold at which the module will begin to limit the Gate - Threshold (Thresh) level of its output signal. Clockwise rotation will allow more output signal before limiting, counterclockwise rotation will allow less. The limiter monitors the module's output signal level, so increasing gain will affect when limiting takes place. Controls the minimum necessary input signal level to turn the module's output on and apply signal to the main unit's buses. Clockwise rotation increases the necessary signal level required to produce output and mute lower priority modules. Gain Provides control over the level of input signal that can be applied to the internal signal buses of the main unit. Allows a way to balance the input levels of various devices so that the main unit controls can be set to relatively uniform or optimum levels. Clockwise rotation will increase gain, counterclockwise rotation decreases gain. Gate - Duration (Dur) Controls the amount of time the output and mute signal of the module remains applied to the main unit's buses after the input signal falls below the required minimum signal level (set by the threshold control). Clockwise rotation will increase time duration, counterclockwise will decrease duration within a 0.5s to 5s range. Telephone System Connections Connect the telephone system's Tip line to the "T" terminal and the Ring line to the "R" terminal. When interfacing to a ground start trunk, also connect a wire from the PBX's ground to the module's "CM" terminal. In some cases, the power supply's ground connection alone will be adequate. For Dry Loop (Page Ports), connect the audio pair to the module's "T" & "R" terminals (polarity insensitive). No power supply is necessary.The module is audio-activated so a contact pair from the page port is not needed. Power Supply Connections Interfacing to a loop or ground start trunk requires an external 48V power supply to be connected to the module. Make connections as marked. The ground connection is optional, but can be helpful when interfacing to ground start trunks. Bogen Model PRS48 is recommended. Connections PBX Ground Start Trunk T R Gnd PBX Loop Start Trunk T R Gnd TEL1S Terminal Strip T R CM + 48VDC 50mA (min) External Power Supply TEL1S Terminal Strip T R CM + 48VDC 50mA (min) External Power Supply 48VDC @ 50mA 48VDC @ 50mA Ground Start Interface Troubleshooting 1. Check that trunk is a Ground Start type. Try other trunk style connections. If there is DC voltage on the telephone line, it is a station line and cannot be interfaced to this module. 2. Check jumper settings. 3. Check power supply connections and operation. 4. Check connection between CM terminal and the PBX's ground. 5. Try reversing T & R connections. Loop Start Interface Troubleshooting 1. Check that trunk is a Loop Start type. Try other trunk style connections. If there is DC voltage on the telephone line, it is a station line and cannot be interfaced to this module. 2. Check jumper settings. 3. Check power supply connections and operation. 4. Try reversing T & R connections. PBX Page Port Audio A1 Pair A2 Contact C1 x No Pair C2 x Connection Block Diagram TEL1S Terminal Strip T R CM 48VDC @ 50mA Page Port Interface Troubleshooting 1. Check that there is no DC voltage on the telephone line. If there is, it is a station line and cannot be interfaced to this module. 2. Check jumper settings. 3. Check that audio is present at audio pair leads of page port. 4. Adjust Threshold control on module. TEL INTERFACE GATING INPUT T R CM LIMITER GAIN BUS ASSIGNMENT BUS A BUS B GATE CONTROL PRIORITY LEVEL MUTE HIGH MUTE MED MUTE LOW 48VDC @ 50mA MUTE OUT MUTE IN www.bogen.com