Cep Terminals UMTS-TERMINAL HT63 E 6501 数据表
产品代码
6501
CEP AG
Revision 0.9
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Page 8 of 27
6
GND
Signals of Power Connector
PIN
Signal
Direction
Limits
Description
1
VCC
Input
5 – 32V
Positive power input, DC
2
Not connected
Not connected
Not connected
Not connected
3
EMERG_OFF
Input
5 – 32V
Active high control line
used to switch off
V
IH
> 5V, V
IL
< .5V
Power off: t >1s
4
TO_IN
Input
5 – 32V
Positive edge triggered
signal; used to switch on
the modem
V
IH
> 5V, V
IL
< 0.5V
Power on: t >1s
5
Not connected
Not connected
Not connected
Not connected
6
GND
Input
-
Negative power (ground)
input and return path for
TO_IN and
EMERG_OFF
2.2 Antenna Connector
The antenna connector allows transmission of radio frequency (RF) signals between
the modem and an external customer-supplied antenna. The modem is fitted with a
50Ω, FME male coaxial jack.
Output Power:
2 Watt Peak (Class 4)
GSM 900/850 MHz
1 Watt Peak (Class 1)
GSM 1800/1900 MHz
Description of recommended antenna parameters:
The antenna that the customer chooses to use should fulfil the following
requirements:
Frequency range
GSM 850/900 MHz
GSM 1800/1900 MHz
Bandwidth
80 MHz in EGSM 900, 70 MHz if GSM 850,
Gain
< 3dBi
Impedance
50 ohm
Input power
> 33dBm (2W) peak power in GSM
VSWR recommended
< 2