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Exhibit 8: OEM Interface Manual
• CDPD Mode – Per Cellular Digital Packet Data (CDPD) System Specification, Release
1.1, 19 January 1995 (CDPD will be supported in a future release of the DM20).
1.2.2. Mobile Station Power Class
The module is able to operate in several modes and different output power levels.
Typical applications require output power levels similar to those in a handheld cellular
phone (600-mW nominal) which is considered a power class IV unit for dual mode
operation. It is possible to increase the output power level to that of a class I unit (4 W
nominal) during the 5 second analog burst data mode. The table below shows the
nominal output power levels (Effective Radiated Power, assuming an antenna system
gain of 1 dBd (3.15 dBi) [2.5 dBd (4.65 dBi) antenna gain with 1.5 dB cable loss)).
0
Class I
6
Class IV
-2
*Note: Output power levels maintained within range of +2 / -4 dB unless otherwise
noted
Power levels 8-10 valid for digital mode only
1.3. Power Consumption
1.3.1. Transmit/Talk Mode
DC current in mA
600 mWatt
3 W Burst
1.3.2. Standby Mode
DC current in mA
RMS
1.3.3. Sleep Mode (Minimum DC Power consumption)
A power down or "sleep mode" is available in which the module is placed in a low power
consumption state under control of the host application. In this mode, the unit consumes
approximately 33 uA of current as measured from the VCC_6V supply input on pin 1 of
the system connector. A logic level "0" on pin 19 of the system connector returns the
unit to full operation although there may be a significant delay while the module
reestablishes registration with the cellular network
Mobile Station Nominal Power Levels
Mobile Station Power Level (dBW)
1
2
3
4
2
-2
-6
-10
-2
-2
-6
-10
AMPS Mode
Peak
617
RMS
617
Peak
1810
AMPS Mode
36
©1999 Ericsson Inc.
5
6
7
8
-14
-18
-22
-22
-14
-18
-22
-27±3
IS-136 Mode
590
355
-
IS-136 Mode
15
9
10
-22
-22
-32±4
-37±5
CDPD Mode
590
355
-
CDPD Mode
15
Page 6 of 11
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