TANGO
VERSION 1.04
This confidential document is the property of FALCOM GmbH and may not be copied or circulated without permission.
Page 16
2.1.8
RF characteristics
2.1.8.1
Receiver
EGSM Sensitivity
:
<-104 dBm
DCS Sensitivity
:
<-100 dBm
Selectivity @ 200 kHz
:
> + 9 dBc
Selectivity @ 400 kHz
:
> +41 dBc
Dynamic range
:
62 dB
Intermodulation
:
>- 43 dBm
Co-channel rejection
:
> = 9 dBc
2.1.8.2
Transmitter
Maximum output power (EGSM)
:
33dBm
±
2dB
Maximum output power (DCS)
:
30dBm
±
2dB
Minimum output power (EGSM)
:
5dBm
±
5dB
Minimum output power (DCS)
:
0dBm
±
5dB
H2 level
:
< -30dBm
H3 level
:
< -30dBm
Noise in 925 - 935 MHz
:
< -67dBm
Noise in 935 - 960 MHz
:
< -79dBm
Noise in 1805 - 1880 MHz
:
< -71dBm
Phase error at peak power
:
< 5 ° RMS
Frequency error
:
+/- 0.1ppm max
2.1.8.3
Determining the External Equipment Type
Before you connect the DB9 serial port connectors on the aforementioned
terminals (DCE units) to external equipment, you need to determine if the
external hardware serial ports are configured as DTE or DCE.
The terms DTE (Data Terminal Equipment) and DCE (Data
Communications Equipment) are typically used to describe serial ports on
devices. Computers (PCs) generally use DTE connectors and
communication devices such as modems and DSU/CSU devices generally
use DCE connectors. As a general rule, DTE ports connect to DCE ports via
straight through pinned cables. In other words, a DTE port never connects
directly to another DTE port. Similarly, a DCE port never connects directly
to another DCE port. The signalling definitions were written from the
perspective of the DTE device; therefore, a Receive Data signal becomes an
input to DTE but an output from DCE.
All TANGO series are designed for use as a DCE unit. Based on the
aforementioned conventions for DCE-DTE connections it communicates
with the customer application (DTE) using the following signals: