Motorola Malux MTM5400 Series, Installation Manual

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Appendix E
Product Specific Information for
Digital Terminals Type MT953C/
MT853C/MT753C/MT553C
This section gives the Service Personnel an overview about product-specific notes. It is necessary to
take special precautions to avoid the introduction of hazards when operating, installing, servicing, or
storing equipment. This terminal meets the applicable safety standards if it is used as described.
Follow carefully all operating and safety instructions.
Table 71: Equipment Electrical Ratings
Rated Voltage 12 V DC
Rated Voltage Range 10.8 to 15.6 V DC
Rated Current MT953C (380–430 MHz), MT853C (350–390 MHz), MT753C (806–
870 MHz), MT553C (410–470 MHz): 4 Amps @ 10 Watts RF power
Please be aware when planning the installation that there is a current
consumption of max. 4.5A during PTT and even 30mA (non-Ether-
net)/ 90mA (Ethernet) when terminal is switched off.
Transmitter Frequency
Range TMO: 380–430 MHz (MT953C), 350–390 MHz (MT853C), 806–870
MHz (MT753C), 410–470 MHz (MT553C)
DMO: 380–430 MHz (MT953C), 350–390 MHz (MT853C), 851–870
MHz (MT753C), 410–470 MHz (MT553C)
Receiver Frequency
Range 380–430 MHz (MT953C), 350–390 MHz (MT853C), 806–870 MHz
(MT753C), 851–870 MHz (MT753C), 410–470 MHz (MT553C)
Table 72: Normal Load Conditions
Rated RF Power 10 Watts
Rated Audio Power 10 Watts @ 4 Ohms; 6 Watts @ 8 Ohms
Antenna Impedance 50 Ohms
Operating Temp. Range -30 to +60°C
Operating Time Continuous/Intermittent
NOTICE: In general, the communication system determines terminal transmit and receive time
(operating cycle time). On overload, respectively on extensive use beyond the systems
specifications at high ambient temperatures, the thermal control protects the terminal. The
thermal control cuts down the RF output power, thus reducing the terminal coverage range.
Table 73: Fuse Identification
Fuse for Power Cable
GKN6270/GKN6274 10 A (Motorola Part Num-
ber: 6500139767)
IMPORTANT: In case of
blown fuses during the in-
stallation, replace ONLY with
Table continued…
68015000181-LB
Product Specific Information for Digital Terminals Type MT953C/MT853C/MT753C/MT553C
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