RLC-ADM Technical Specifications

Transcription

1 RLC-ADM Technical Specifications RLC-ADM specifications: C Signal-Noise Ratio: -9dB C Total Harmonic Distortion: 0.% C Module Current Draw: ma C Operating Voltage: +V..+V C Frequency Specifications: TBD C Delay Times:.mS-9.mS in steps Applications: ) Remove squelch tail from the repeater's audio when a receiver keys and unkeys - When using the RLC-ADM, audio is delayed for up to 9mS. As the receiver unkeys a burst of squelch noise is received by the delay module. Because the noise burst is delayed, the controller can mute the audio before the noise burst is transmitted. If you are using un-squelched audio (discriminator audio) a special circuit is provided that allows muting of the audio when the squelch is closed, before it is delayed by the audio delay module. If this situation applies see application # for further details. ) Using the receiver's COR input to control un-squelched audio - The RLC-ADM provides an external control input that connects to the receiver's COR circuit. The COR input can be either high going or low going. If the COR is high going (Unsquelched COR goes high) connect to pin # (See diagram on the back). If the COR is low going (Unsquelched COR goes low) connect to pin # and remove the jumper between pin # and pin #. When this feature is not used pin # needs to be tied to pin #. ) Remove DTMF "blip" from muted audio - The RLC-ADM can allow complete DTMF elimination in conjunction with the repeater controller. (RLC- versions A,B and RLC- version A do not support this feature). When the repeater controller is programmed for DTMF mute, the audio to the decoder is tapped before the delay module and the audio that goes over the repeater is tapped after the delay module. So when the controller detects a valid DTMF digit it mutes the receiver's audio and eliminates all traces of the DTMF digit before the user can hear it. Connection Considerations: ) Delay times are set using small solder bridges. (Use low power soldering iron when making bridges) Delay S S S S.mS bridge bridge bridge bridge.ms open bridge bridge bridge.9ms bridge open bridge bridge 9.mS open open bridge bridge.ms bridge bridge open bridge.ms open bridge open bridge.ms bridge open open bridge 9.mS open open open bridge (Default Delay Setting) 0.mS bridge bridge bridge open.0ms open bridge bridge open.ms bridge open bridge open.ms open open bridge open 9.9mS bridge bridge open open.ms open bridge open open.ms bridge open open open 9.mS open open open open

2 PC Board Jumper Locations: RLC-//Club Connector O O O [] I Input COR mute [] O O G - + Audio Delay Jumpers [] [] [] [] [] [] [] [] RLC-,, Connector Other I Controllers O O O [] RLC-ADM Important considerations when installing the RLC-ADM ) Determine your controller type and the appropriate connector to use before installing the delay module ) RLC- controllers use the 'RX' pin connector on the radio cards for RLC-ADM attachment ) If you have problems or questions please contact Link Communications Inc. Warranty: Link Communications Inc. warrants that its products will be free from defects in materials and workmanship for a period of one year from the date of shipment. During this time, Link Communications Inc. will cover parts, labor and return shipping. If failure is caused by instances other than manufacturing defects, Link Communications Inc. will repair the product and bill the customer for parts and labor. What Link Communications Inc. will not cover:. Too much voltage to the delay module. The RLC-ADM operates at +V to +V, negative ground.. Damage to the delay module by lightning, accident, or incorrect power hook-up.. Incorrect unit installation.. Damage caused by shipment (damage claims are handled by the carrier).. Repairs by other than Link Communications Inc. THIS WARRANTY HOLDS ONLY TO THE ORIGINAL PURCHASER

3 Installation Directions, RLC- (version c,d), RLC-, RLC-, RLC- ) Locate the pin header connector on the controller as pictured below ) Remove the jumper that is located between pins - (Input), and - (Output) ) Install the RLC-ADM with the -pin header as pictured below Step is only needed if pre-audio muting is needed to suppress before key-up noise burst ) Attach a jumper wire from the COR - + muting connector to the following point RLC- revision C,D: Cathode side of D (Main port), D (Link port) RLC- revision A,B: Cathode side of D (Main port only supports RLC-ADM) RLC- revision C: Cathode side of D (Main port ), D9 (Link port ), D (Link port ) RLC-: Cathode side of D (Link port ), D (Link port ), D (Link port ), D (Link port ) RLC-: Cathode side of D (Link port ), D (Link port ) Installation Directions, RLC- radio cards The installation directions are the same for the RLC- radio cards except the pin header connector on the RLC-ADM needs to be on the 'RLC-' side of the ADM board. ) Locate the sets of -pin header blocks on the radio card. ) The top -pin header block is the port for the RLC-ADM ) Locate cathode side of D (Common on all radio cards) ) See above steps O O O O Jumper Positions [] O O O Rest of the circuit is upside down RLC- O O O [] Rest of the circuit is facing up like normal RLC-,, Generic Board Placement RLC-//Club C Active low COR inputs need to connect to pin () of the COR - + connector and remove the jumper. C Active high COR inputs need to connect to pin () of the COR - + connector and jump pins and.

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5 R R0 A B C D AINP JUMPER MUTE C uf C 0uF J HEAD x MUTE U VI VO R R K 0K LML0AC R K R K COR+ COR- C 0.uF Q N90 R K MUTE R K R 0K COR AUDIO MUTING CONTROL (OPTIONAL) COR VOLTAGES MUST RANGE FROM 0-V MAX C 00pF R 0K + R9 R 0K 0K R9 K - Q N00LT C C R K 00K R K UA LMC 00pF R 0 R0 S SELECT R C9 0pF C 0.uF MEG 0K C0 0.uF S SELECT Y MHZ C uf 0 9 U DP DP DP DP XINP XOUT LPI LPO OPI OPO VREF MP CC CC OPI OPO LPI LPO TEST.. SLP D A J SOCKETx 9 0 R 0 C 0pF AINP AOUT R C 0.uF MUTE AINP AOUT LINK COMMUNICATIONS INC. DIGITAL AUDIO DELAY MODULE Delay Time:.mS.. 9.mS THD = 0.% typical Dynamic Range -9dB..-9dB typical 0K C R R K K R K C 0.uF C 0.uF 0.uF C J 00pF SOCKETx Q N90 R K K UB LMC * - REMOVE FOR NO DC BIAS OUTPUT * R 0 Delay Times S S S S DELAY mS mS mS mS mS 0 0.mS 0 0.mS 0 9.mS mS 0 0.0mS 0 0.mS 0.mS mS 0.mS 0.mS 9.mS C 0.uF Link Communications, Inc. P.O. Box 0 Sidney, MT. 90 AOUT A B C D Size Document Number Rev B DIGITAL AUDIO DELAY MODULE B Date: Wednesday, February,00 Sheet of

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