Siemens C75 Service Repair Documentation page 16

Company Confidential
Copyright 2005© Siemens AG
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Switching Matrix:
GSM900/DCS1800/PCS1900 RX
Pin assignment:
1 Antenna
2 GND
3 Vsw2 (DCS1800/PCS1900 TX control)
4 GND
5 DCS1800/PCS1900 TX
6 GND
7 GND
8 GND
9 GND
10 GND
11 GND
12 GND
13 GND
14
Service Repair Documentation
Level 2.5e – C75
select mode
EGSM TX
DCS1800/PCS1900 TX
Page
s Com
Vsw 1
Low
high
Low
15 EGSM900 RX1
16 EGSM900 RX2
17 DCS1800 RX1
18 DCS1800 RX2
19 PCS1900 RX1
20 PCS1900 RX2
21 GND
22 GND
23 GND
24 GND
25 GND
26 Vsw1 (EGSM900 TX control)
27 EGSM900 TX
28 GND
of
16 37
Vsw 2
Low
Low
High
Release 1.0