MTCBA-C1X-N3 Multi-Tech Systems, MTCBA-C1X-N3 Datasheet - Page 8

• Manufacturer Part Number: MTCBA-C1X-N3
• Description: MODEM CDMA FOR SPRINT NETWORKS
• Manufacturer: Multi-Tech Systems
• Series: MultiModem® CDMAr

Specifications of MTCBA-C1X-N3

• Function: Transceiver, CDMA, Modem
• Modulation Or Protocol: CDMA2000
• Frequency: 800MHz, 1.9GHz
• Applications: General Purpose
• Interface: RS-232 (DB15)
• Data Rate - Maximum: 153.6kbps
• Features: Sprint Networks
• Voltage - Supply: 5 V ~ 32 V
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 881-1155

Chapter 1 – Product Description and Specification
Cellular Information
Antenna System for Cellular Devices
PTCRB Requirements for the Antenna
FCC Requirements for the Antenna
Antenna Specifications
RS232 15-Pin Connector
The following table explains the pin functions.
8
The cellular performance is completely dependent on the implementation and antenna design. The integration of the antenna
system into the product is a critical part of the design process; therefore, it is essential to consider it early so the performance is
not compromised. If changes are made to the certified antenna system of the MultiModem, then recertification will be required
by specific network carriers such as Sprint. The Antenna System is defined as the UFL connection point from the MultiModem
to the specified cable specifications and specified antenna specifications.
There cannot be any alteration to the authorized antenna system. The antenna system must maintain the same specifications.
The antenna must be the same type, with similar in-band and out-of-band radiation patterns.
The antenna gain, including cable loss, for the radio you are incorporating into your product design must not exceed the
requirements at 850 MHz and 1900 MHz as specified by the FCC grant for mobile operations and fixed mounted operations as
defined in 2.1091 and 1.1307 of the FCC rules for satisfying RF exposure compliance. The antenna used for transmitting must
be installed to provide a separation distance of at least 20cm from all persons and must not transmit simultaneously with any
other antenna transmitters. User and installers must be provided with antenna installation instructions and transmitter operating
conditions to satisfying RF exposure compliance.
RS-232
Reset
CDMA RF Specifications
CDMA Antenna Requirements/Specifications
PIN
Frequency Range
Impedance
VSWR
Typical Radiated Gain
Radiation
Polarization
Antenna Loss
TRP/TIS
Frequency RX
Frequency TX
12
11
13
14
1
6
2
8
9
7
EIA
DCD
RX
TX
DTR
GND
DSR
RTS
CTS
RI
RESET
CDMA 800
869 to 894 MHz
824 to 849 MHz
824 – 894 MHz / 1850 – 1990 MHz
50 Ohms
VSWR shall not exceed 2.0:1 at any point across the bands of operation
3 dBi on azimuth plane
Omni-directional
Vertical
Free space not to exceed -3dB
The total radiated power (TRP) at the antenna shall be no less than
+21/20 dBm for PCS/Cell channels respectively, and the total isotropic
sensitivity (TIS) at the antenna shall be no less than -104/104 dBm for
PCS/Cell channels respectively.
109
104
103
108.2
107
105
106
125
CCIT
Designation
Data Carrier Direct
Receive Data (out)
Transmit Data
Data Terminal Ready
Signal Ground
Data Set Ready
Request to Send
Clear to Send
Ring Indicator
To reset, connect to GND momentarily
(typical: 20mSec). Open for normal
operation.
CDMA 1900
1930 to 1990 MHz
1850 to 1910 MHz
Multi-Tech Systems, Inc. MultiModem CDMA User Guide