Telex 1505 - Manuals

Telex 1505 – Manual in PDF format online.

Manuals:

Manual Telex 1505

1 Page 1
2 Page 2
3 Page 3
4 Page 4
5 Page 5
6 Page 6
7 Page 7
8 Page 8
9 Page 9
10 Page 10
11 Page 11
12 Page 12
13 Page 13
14 Page 14
15 Page 15
16 Page 16
17 Page 17

Summary

Page 2 - Table of Contents

1. General The Vega Model 1505 Audio Line Driver is ageneral purpose card that provides a reliablemeans of remotely controlling a variety of cus-tomer specified devices. The card is flexible. Itcan perform basic switching functions, custom-ized switching functions (via jumpers), or spe-cial user-def...

Page 5 - terminating resistor is provided for; . 3 . 5 P a r a l l e l T r a n s m i t L i n e I m p e d a n c e

4.3.2 Microphone Jumpers Depending on which microphone you are us-ing, the following jumpers must be installed: JP2 - carbon element; JP3 - electret element; JP4 - dynamic element with a low output. No jumpers are installed for a dynamic micro- phone with a high output. 4.3.3 Receive Line Input Impe...

Page 8 - NOTE

6. Theory of Operation 6.1 General The 1505 module uses a low loss, wide band transformer for each channel to interface to the phone line. Gain elements are low noise, low distortion, high gain operational amplifiers for quality performance. Each channel utilizes one half of dual compandor IC, confi...

Telex Manuals