Summary of Contents for Convex 2241A
- Page 1 OPERATING MANUAL 2241A AUDIO / PTT DISTRIBUTION PANEL Issue Date: December 2004 www.ConvexCorp.com (C) Copyright 2004 CONVEX CORPORATION...
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Page 2: Table Of Contents
PAGE INTRODUCTION.....1-1 FRONT / REAR PANEL.....1-1 MOUNTING......1-1 2241A APPLICATION......1-1 POWER......1-1 BLOCK DIAGRAM 2241A AUDIO / PTT..1-1 POWER ALARM / INDICATORS..1-1 BLOCK DIAGRAM PTT CIRCUIT....1-1 AUDIO AND PTT DISTRIBUTION..1-1 BLOCK DIAGRAM PTT CIRCUIT....1-2 PTT BUFFERING....1-2 BLOCK DIAGRAM 2241A AUDIO / PTT..1-3 PTT CONVERSION....1-2... -
Page 3: General
PTT CIRCUIT HI Z 15/40 PTT CIRCUIT IN16 16/41 16/41 PTT CIRCUIT 1-2 MOUNTING The 2241A is packaged in a 1U high, 17/42 17/42 PTT CIRCUIT rack mounting, panel. It is 12 Inches deep, and mounts HI Z 18/43 PTT CIRCUIT IN19 in a 19 Inch Rack or Equipment Cabinet. -
Page 4: Ptt Output Circuit
This control has a range of +/- 10 dB (0.316 to 3.16) with a logarithmic 1-9 PTT DISTRIBUTION. The 2241A can be set so that characteristic that provides a constant dB gain change individual PTT Inputs can be distributed to multiple PTT per degree of rotation. -
Page 5: 1-14 Specifications
*Digitac: Key < +6 V / Idle > +6 V 600 OHM, BALANCED RECEIVERS / DRIVERS PUSH TO TALK CIRCUITS * Digitac is a Trademark of Motorola Inc. BLOCK DIAGRAM / 2241A AUDIO / PTT DISTRIBUTION PANEL AUDIO / PTT DISTRIBUTION CONTROL DIST IN S90-S113... -
Page 6: Installation
In this case, remove power module with the 2241A in service. Installation discuses and check the fuse (on the rear of the 2241A) which mounting, I/O and power hook-up, and configuration. corresponds with an unlit LED. Replace any missing or... -
Page 7: Block Diagram 2241A Audio / Ptt
23/48 23/48 PTT CIRCUIT HI Z 24/49 PTT CIRCUIT 600 OHM, BALANCED RECEIVERS / DRIVERS PUSH TO TALK CIRCUITS BLOCK DIAGRAM / 2241A AUDIO / PTT DISTRIBUTION PANEL DIST IN S90-S113 E/M SEL DET GND PTT OUT 25,50 M:I,II,III 1-24... - Page 8 2241A Distribution Panel INSTALLATION Section 2 552725-1 STANDARD RECEPTACLE 552726-3 REVERSE PLUG 552725-1 STANDARD RECEPTACLE 552726-3 REVERSE PLUG J2 / AUDIO OUTPUT J3 / PTT INPUT J4 / PTT J1 / AUDIO INPUT R725 OUTPUT ALARM RELAY COMPONENT LOCATION DRAWING...
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Page 9: Operational Check / Ptt
If any audio check continues to fail with S1 - S7 in the If any of the PTT checks fail, remove the top cover and Input position, replace the top cover. Contact Convex to check to see that all Switches are set to the default arrange for return for warranty repair. -
Page 10: Power Module Replacement
2-4 POWER MODULE REPLACEMENT If it is not modules. Check that the alarm condition has been feasible to take the 2241A out of service, a failed power released (greater than 10K Ohms across Audio Output module can be replaced while the 2241A is in service. A Connector pins 25/50 ) and that both Power LEDs are lit. -
Page 11: Ptt Buffering
OFF to permit PTT Buffering. Switch S8 controls PTT Outputs 1-12. S9 controls PTT Outputs 13- 2-5-2 MOUNTING. If the rear panel of the 2241A will be 24. When PTT Distribution is turned OFF, S1-S7 obstructed by other equipment in the cabinet, connect continue to control Audio Distribution, but have no signal and power cables prior to mounting. -
Page 12: Signal And Power Connections
Trouble description Your name / phone number left of the rear panel. Turn the DC Power Supply ON, and check that both LEDs on the front of the 2241A are Return shipping address lit. WARRANTY All Convex products are warranted AC Units have an integral power cord. -
Page 13: Operation
MADE IN USA Distribution Switches. The internal PTT configuration 3-1 INTRODUCTION This section discusses operation of the 2241A Audio / PTT Distribution Panel. The 2241A switches are not controlled during normal operation. provides a compact means of distributing audio and 3-5 FRONT PANEL / PTT CONTROLS . -
Page 14: Trouble Shooting
Section 3 transmitters at all sites except one for purposes of FINAL NOTE Features found in all Convex Products testing the one site. In this case, operation of the PTT are the result of feedback from current and prospective Switches insures which transmitters will remain OFF and customers.
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