Honeywell Excel 100C Installation Instructions Manual page 36

EXCEL 100C INSTALLATION INSTRUCTIONS
Serial Cable
GSM Antenna Requirements
ROUND RADIATION ANTENNA,
MAGNETIC BASE, 5 dBi
EN1R-0144GE51 R1007
For connecting the M20T to the Excel controller, a standard RS232 cable (9-pin V24
sub-D sockets) is required.
All major suppliers of GSM antennas can supply GSM900 Antennas with FME plugs
to connect with the M20 Terminal for a variety of applications. Some antenna
examples are shown below.
The antenna must satisfy the following electrical requirements:
Frequency TX
Frequency RX
Impedance
VSWR TX:
VSWR RX
Gain
3dB width of cone
Maximum power
Depending on the application and the RF field at the local site, the GSM antenna
may be mounted directly or via cable. The maximum antenna cable length is 8.0 m
(including 20 cm M20 Terminal-cable)
NOTE: The maximum number of push/pull cycles shall not exceed 100.
The antenna interface connector of the M20 unit is a FME connector (of type SMR
nano (male)). Hence, the connector on the GSM antenna or antenna cable has to
be of type SMR nano (female, or use a double female connector in between).
DIRECTIONAL ANTENNA (YAGI), 12 DbI
36
890-915 MHz
935-960 MHz
50 Ω
max. 1.7:1 installed
max. 1.9:1 installed
> 1.5 dB referenced to λ /2 dipole
vertical: 80°; horizontal: 360°
1 W (cw), 2 W peak; at ambient temperature of 55°C
WINDOW PATCH ANTENNA, 2 dB