Product Specs

TPRMTPRM ProductSpec.doc Proprietary Information Tellus Technology, Inc.
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The following is a description of the steps to go through to establish the modem
connection:
1. Send the connection command packet to the modem. Wait until the response from
the modem is received to confirm that the modem has been connected to the
network.
2. Establish a socket connection for TCP, or a virtual socket connection for UDP.
3. The modem is now ready to transmit and receive data. The Host can send data to
the modem using the User Data Command (0x00) for transmission to the CDPD
network.
1.4 Status Monitor and System Configuration Procedure
For status monitoring, the Host can get a snapshot of the various modem status
whenever issuing a status get command.
1.5 Protocol Re-Synchronization Procedure
The modem shall stop responding to the Host when it loses the synchronization. When
the Host does not get any response from the modem, the Host should:
1. Stop sending any further commands to the modem
2. Send the NULL command continuously to the modem until a NULL packet is
received
3. After receiving the first NULL packet, the Host can resume the communication
with the modem.
5. Mechanical Specification
The TPRM OEM module is a die cast aluminum alloy housing
Dimensions: 5.24” L by 2.25” W by 0.465” H
Weight: approx. 3.5 oz.
Finish: Chromate Coating to ASTM B449-93, 150 to 250 micro inches thick.
The mounting hole dimensions, are shown in figure 1.
6. FCC Requirements
The TPRM meets Maximum Permissible Exposure (MPE) limits of FCC radio-frequency
exposure requirements for mobile transmitters provided the unit is integrated into
products that can maintain separation of 20 cm from all persons during operation.