Preview only show first 10 pages with watermark. For full document please download

Application Note An #: 204a

   EMBED

Share

Transcript

AN #: 204A Application Note DATE:22-Feb-2005 Page 1 of 1 PYRAMID MODEL #: SVR-200 / SVR-250 RADIO MODEL: Motorola Spectra Low/Mid Power ENGINEER: W. Carlin Connections: SVR JP1 Jumpers: J1 J2 J4 J5 J6 J7 J8 J9 SVR Black/Shield White Blue Green Red Yellow Violet Brown Grey [-] [Out] [Out] [In] [Out] [In] [Out] [+] [Out] APPROVAL INITIALS ENGINEER DEPT. HEAD Function Ground Tx Audio Out Remote enable/disable PTT Out Switched B+ Rx Audio In COR Local Mic In On Air Detect Remote Enable Tx audio level Tx audio impedance Local mic audio loop Local mic PTT loop Local Mic Sensitivity Rx Sensitivity Pull up resistor MCOR Pull up resistor Radio DB15 on rear of chassis (P2) P2 pin 8 (Dig Ground) P2 pin 15 (Mic Hi) External Sw to ground P2 pin 13 (PTT) P2 pin 4 (SW B+) P2 pin 11 (Disc) P2 pin 12 (VIP Out 1) N/C P2 pin 3 (VIP Out 2) SVR Mobile COR Polarity: Program: Mobile Type: On-Air Polarity: Tx Audio Response: Rx Audio Response: High Conv/Trunk High De-Emp Flat Additional Modifications (SVR-200 / SVR-250): None. Additional Modifications (Radio): 1. Install a jumper between the Audio PA IC (TDA 7256) pin 10 (PA enable) and J503 pin 19 (VIP Out 1). 2. Install a jumper between J500 pin 15 (K9.4V) and J503 pin 22 (VIP Out 2).