Appendix A – Peripheral Devices
Multi-Tech Systems, Inc. MMCModem GPRS Developer’s Guide (S000445D)
35
Connector
An antenna with an SMA connector may be directly connected to an MMCModem through a
mating MMCX to SMA adapter.
MMCX / SMA Connector Available from Amphenol
Amphenol
MMCX Plug
The MMCModem requires an MMCX plug to connect to an antenna.
MMCX Connector Example (right angle type)
Antenna
GSM Antenna Requirements/Specifications
Frequency Range:
824 – 960 MHz / 1710 – 1990 MHz
Impedance: 50
ohm
VSWR: <2.0:1
Typical Radiated Gain:
0 dBi on azimuth plane
Radiation: Omni
Polarization: Vertical
Wave: Half
Wave
Dipole
Antennas Available from Multi-Tech:
Quad Band Description
Qty
Part Number
Hinged Right Angle 800/900/1800/1900 MHz Cellular Modem Antenna 1
ANQB-1HRA
Hinged Right Angle 800/900/1800/1900 MHz Cellular Modem Antenna
10
ANQB-10HRA
Hinged Right Angle 800/900/1800/1900 MHz Cellular Modem Antenna
50
ANQB-50HRA
Dual Band Description
Qty
Part Number
Hinged Right Angle 900/1800 MHz Cellular Modem Antenna
1
ANF1-1HRA
Hinged Right Angle 900/1800 MHz Cellular Modem Antenna
10
ANF1-10HRA
Hinged Right Angle 900/1800 MHz Cellular Modem Antenna
50
ANF1-50HRA
Hinged Right Angle 800/1900 MHz Cellular Modem Antenna
1
ANCF2-1HRA
Hinged Right Angle 800/1900 MHz Cellular Modem Antenna
10
ANCF2-10HRA
Hinged Right Angle 800/1900 MHz Cellular Modem Antenna
50
ANCF2-501HRA
PTCRB Requirements Note:
There cannot be any alteration to the authorized antenna system. The antenna system must be
the same type with similar in-band and out-of-band radiation patterns and maintain the same
specifications.
FCC Requirements Note:
The antenna gain, including cable loss, must not exceed 3.0 dBi at 1900 MHz / 1.6 dBi at 850
MHz for mobile operating configurations and 7.0 dBi at 1900 MHz / 2.3 dBi at 850 MHz for fixed
mounted operations, as defined in 2.1091 and 1.1307 of the rules for satisfying RF exposure
compliance.
SIM Card Holder
The SIM cardholder used in the integrated modem is a MOLEX connector.
Part number connector: 99228.
Part number holder: 91236.
For more information about this connector:
http://www.molex.com/
It is possible to use a stand-alone SIM cardholder through the 50-pin connector, but the length of the SIM
line must not exceed 15 cm.
