Maxon J-STD-008 User manual

Title: J-STD-008 Compatible Single Access Wireless Terminal, Introductory Version.
Document Number: PS-SAU-1900E
Revision Number: 0.0
Release Date: Mar. 8th, 1999
Project Engineer: Y.S.Cho
This document shows designs, technical data, and/or inventions which are the
proprietary rights of Maxon America, Inc. and are disclosed in confidence to the
recipient of this print for use by the recipient only in considering or performing a
contractual arrangement with Maxon America, Inc. Information presented in
this document is subject to change without notice.
Maxon America, Inc.
10828 NW Airworld Drive
Kansas City, Missouri 64153

PS-SAU-1900E
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Table of Revisions
Date Revision Changes
Mar. 8th, 1999 0.0 1) First draft release

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TABLE OF CONTENTS
1. General Description of Product. 5
1.1. Basic Features and Design Requirements of Product. 5
2. General Description of the Line Access Unit. 10
2.2. Main board. 10
2.2.1. Functional Description. 11
2.2.2. I/O Definitions. 11
2.2.3. Critical Electrical Characteristics. 11
2.3. Line Interface Unit (LIU). 11
2.3.1. Functional Characteristics. 12
2.3.2. Electrical Characteristics. 15
2.3.3. Applicable Specifications. 16
2.4. Power Supply Module (PSM). 16
2.4.1. Functional Characteristics. 16
2.4.2. Electrical Characteristics. 16
2.5. Battery Management Module (BMM). 17
2.5.1. Functional Characteristics. 17
2.5.2. Electrical Characteristics. 18
2.6. CDMA Module (CDM). 18
2.6.1. I/O Definitions. 18
2.6.2. Electrical Characteristics. 20
2.7. Analog Fax Module Interface(AFMI). 21
2.7.2. Functional Characteristics. 21
3. Software Description. 21
3.1. Telephone Interface. 21
3.1.1. Telephone Interface State Diagram. 22
3.1.2. INCOMING CALL State. 23
3.1.2.1. IDLE State. 24
3.1.2.2. Ring Treatment and Caller ID Data Transmission. 24
3.1.2.2.1. Caller Identification Data Transmission. 25
3.1.3. Call Placement State. 25
3.1.3.1. IDLE State. 26
3.1.3.2. Dial Tone and Digit Collection. 26
3.1.3.3. Gather Dialed Digits Substate. 26
3.1.4. TALK State. 27
3.1.5. VERTICAL FEATURES Interactions. 28
3.1.6. Special Notes. 29
3.1.7. Emergency Numbers. 29
3.2. Hardware Interfaces. 29
3.2.1. Line Interface Module. 30
3.2.1.1. SLIC Operation. 30
3.2.1.2. Caller ID Circuit Operation. 31
3.2.2. Power Supply Module. 31
3.2.3. Battery Management Module. 31
3.2.4. GPIO Expansion Bus. 32
3.2.5. Analog Multiplexer (MUX). 33
3.2.6. LED Indicators. 33
3.3. User Interface Specification. 34
3.3.1. Product Configuration. 34
3.3.1.1. Interface Hardware Description. 34

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3.3.1.2. Configuration Requirements for J-STD-008 System Interface. 34
3.3.1.3. LAU Application-Specific Hardware Configuration Requirements. 35
3.3.2. Product Test and Maintenance. 38
4. Replaceable and Optional Components. 39

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1. General Description of Product.
The Maxon J-STD-008 Line Access Unit (LAU) is an J-STD-008 compatible transceiver unit which
provides an interface between a standard EIA-470 compliant telephone-type device and a J-STD-008
CDMA PCS base station.
1.1. Basic Features and Design Requirements of Product.
The following general requirements will be provided by the Maxon J-STD-008 LAU.
Electrical
Main Power Source: Country-specific ac/dc wall transformer, with input
voltages between 90 - 280 Vac, 50-60 Hz, and an
output dc voltage of 16 - 30 Vdc (nominal ∼19 Vdc).
Reserve Power Source: Sealed-cell lead acid battery, ∼12 V, rechargeable,
with sufficient capacity to provide up to 1.5 hours
TALK time and up to 22 hours STANDBY time, when
measured from a condition of full charge, at an
ambient temperature of 25°C.
Battery Recharge Time: The recharge system will provide sufficient capability
to fully recharge the reserve battery from maximum
allowable discharge to maximum charge level in less
than 36 hours.
Surge Protection: Product will meet the requirements of paragraph
4.2.7.4.5. of EIA/TIA-571, for Type 2 surges.
RF Transmitter Power (maximum): 200 mW, measured at antenna connector.
Antenna Interface: 50 ohms
Power Fuse: Internal, not accessible by the customer..
Mechanical
Shock: The unit shall be designed to withstand the drop
requirements of EIA/TIA-571, paragraph 4.1.1.1.3.-
3.a., which specifies single face drops from 6” and
single corner drops from 3” onto a tiled surface, with
battery installed.
Vibration: Required to survive typical transportation and shipping
induced vibrations, as defined by paragraph 4.1.1.2. of
EIA/TIA-571, with battery removed. The battery is not
covered by this specification.

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Dimensions: Approximately 9” x 5” x 2”.
Weight: ∼3.75 pounds, with battery installed. Transformer
weight is ∼2.25 pounds.
Connectors: One (1) dc power input connector.
Two (2) RJ-11 parallel female telephone connectors.
One (1) mini-DIN programming interface connector.
One (1) BNC-type female RF antenna connector.
Internally mounted plated-contact battery connector.
One (1) country-specific telephone cable to convert
between RJ11 and country specific telephone
interface.
Antenna (fixed): Monopole, λ/2 wavelength, adjustable in z-plane,
removable, with shrouded BNC RF connector.
Antenna (remote): To be defined after further field evaluation.
Indicators: One (1) LED - In Service. Shows:
• No PILOT Channel (LED off)
• Marginal PILOT Channel (LED blink)
• Good PILOT Channel (LED on)
The Frame Error Rate will be used as
the Pilot Quality indicator. The FER
which defines “marginal” Pilot status
will be software-programmable.
One (1) LED - Power Status / Battery Status.
Shows:
• No Power (LED off)
• AC Power (LED on)
• Battery Power (LED blink)
One (1) LED - Disruption Indication.Indicates
failure of internal fuse when ON.
General Performance Requirements
RFI Immunity: Product will demonstrate immunity to external RF
fields when applied as specified in TIA/EIA-631. Level
of immunity will be determined by through three
primary mechanisms:
• Audio-band noise measured at the LAU’s RJ-11
output. Electrical noise level shall not exceed 39

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dBrnC, when the LAU analog loop interface is
terminated into a 600Ωload.
• Receiver desensitization, determined by tests
specified in Sections 3.4.2 and 3.4.3 of J-STD-
018.
• Glitches in product operation, determined by
operating the product while subjected to the
required interference.
Reliability: TBD(Refer to conditions of Nortel / Maxon Purchase
Agreement, WSSM 97108KG.)
Safety Requirements
Telecom Network Voltage (TNV) Isolation: Product will provide mechanical isolation from
dangerous internal voltage levels, per requirements of
UL1950, CSA950, and EN6950 (optional). The
exception to this requirement shall be the housing-
mounted antenna connector.
Network Fault Tolerance: The product design will be such that damage will not
occur if the RJ-11 connector is accidentally connected
to a live analog telephone network. Therefore, the
product should operate after the following sources are
connected to the tip and ring pins of the RJ-11 output
for up to 5 minutes, regardless of polarity:
DC: 56 Vdc through 400 Ω.
AC: 56 Vdc, with 90 Vrms superimposed, through 400
Ω.
It is absolutely essential that no fire be caused within
the product under the above conditions. In addition, if
product failure should occur, then the required mode
is FAIL SAFE. In other words, the RJ11 outputs
should fail open with no internally generated voltages
present on the output after the failure occurs.
Certification and Regulatory Requirements
Compliance with all or part of the following regulatory standards is required.
• Federal Communications Commission, Part 15, Class B.
• Federal Communications Commission, CFAR-47, Subsection 22.
• Underwriter’s Laboratory UL1950.
• Canadian Standards Association CSA1950
• J-STD-008 Mobile Station - Personal Station Base Station Compatibility Requirements for 1.8
to 2.0 GHz Code Division Multiple Access(CDMA) Personal Communication Systems.
• J-STD-018 Recommended Minimum Performance Requirements for 1.8 to 2.0GHz Code
Division Multiple Access(CDMA) Personal Stations.

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Compliance with all or part of the following regulatory standards is optional, but may become
mandatory, dependent upon market requirements..
• CISSPR22, European Union Standard for Emissions, as a Class B device
• Russia-specific requirements.
• India-specific requirements.
• Canada specific requirements.
Environmental
Operating Temperature (ac power, w/ battery installed): -15° C to 50° C.
Operating Temperature (battery power): -15° C to 50° C.
Operating Humidity Range: 0 - 95%, non-condensing.
Storage Temperature (excluding battery): -40° C to 70° C.
Storage Temperature (battery): -40° C to 60° C (tstore < ½ mo.)
-15° C to 40° C (tstore < 12 mo.)
5° C to 25° C (tstore > 12 mo.)
Features and Functions
RF Interface Definition: Per J-STD-008, Mobile Station - Base Station
Compatibility Standard for 1.8 to 2.0GHz Code
Division Multiple Access Personal Communications
System
Vocoder Requirements: 8 kbps CELP and 13 kbps QCELP, EVRC as optional.
Vertical Network Feature Support: CALL WAITING
C
ANCEL CALL WAITING
C
ALL FORWARD
C
ANCEL CALL FORWARD
C
ONFERENCE CALLING
C
ALL TRANSFER
C
ALLER ID NUMBER DELIVERY (US BELLCORE
COMPLIANT)
C
ALLER ID NAME DELIVERY (US BELLCORE COMPLIANT)
L
INE REVERSAL.
Data Services: IS-99, IS-707
Plug-in Analog Fax Module(MDL-1, optional)
(9600BPS G3 Fax only)
Programming Interface: Programming supported via a special isolated
interface adapter, which will be supplied only to
installation personnel. A PC-based software package
and an RS-232 interface converter will facilitate
product configuration and test capabilities.
Telephone Network Emulation: Product provides emulation of “short loop” loop-start
analog telephone interface, including signaling, talk,

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and idle. Refer to later sections of this specification
for detailed information about this interface.
Network Interface: Interface to external analog telephone devices will be
through the product’s RJ-11 interface adapters. A
special interface cable / converter may be required to
connect the analog device to the product.
The electrical characteristics of this interface will
assure compatibility with any telephone device which
complies with EIA/TIA-RS-470-A. In addition, the
interface will be able to source a minimum 25 mA dc
current into a worst case British Telecom load of 400
Ω, resistive.

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2. General Description of the Line Access Unit.
Figure 2.1.-1: Product Basic Block Diagram.
2.2. Main board.
The LAU’s Main board provides the interface between the indicated modules. It also serves as the
mechanical mounting point and electrical interface for the LAU’s external connectors.
Transceiver
Circuits.
Power Supply
Module
• Raw DC primary power.
• Battery charging (13.5V).
• Ring supply (-65 Vdc).
• Talk battery (-24 Vdc).
• Logic supply (5 Vdc).
• Status indicators.
CDMA Module
Digital circuits
• MSM controller.
• BBA interface.
• Program memory.
• Data memory.
• Configuration memory
• Serial I/O..
Line Interface Module
(part of Main Board)
• Analog telephone interface.
• Caller ID function.
• DTMF detect and decoder.
• Programming interface.
Battery Management
Module
(Part of Main Board)
• Supply source control.
• Power-on RESET.
• Battery charge control.
Main board
• Inter-module interface.
• External interfaces.
• Control logic.
RF IN
Telephone IN
Telephone IN
Serial Interface
DC Power
Analog Fax Module
• Modem Chip
• Protocol interface
• Fax buffer memory.
• Configuration memory
• Serial I/O..
• Power Save.

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2.2.1. Functional Description.
The Main Board acts primarily as an interface between the CDMA Printed Circuit Assemblies (PCAs), the
Power Supply Module, and the external connectors. It contains these major hardware functions:
1. External Interfaces.
2. Line Interface Module.
3. Battery Management Module.
4. Interface between the above functions and the CDMA Modules.
5. Power distribution.
These functions will be discussed in detail in subsequent sections of this document.
2.2.2. I/O Definitions.
The primary Main Board I/O points are listed below. Note that this list is not totally inclusive. It contains
only the I/O which is critical in defining the operation of the product.
Connector Pin
Count
Function
RJ11-A 2 or 4 Analog telephone device interface. Two wires (TIP and RING).
RJ11-B 2 or 4 Analog telephone device interface. Two wires (TIP and RING).
Paralleled with RJ11-A.
DC Power Input 2 Rectified DC power input, from ac / dc converter transformer.
Service 3 Two wire serial I/O interface, with ground reference pin. Serial data
is output as a unipolar TTL level signal, referenced to the LAU’s
internal ground. Maximum data rates are 115.2 kbaud.
RF Antenna 1 RF I/O point. Mating point for external antenna.
Table 2.2.2.-1: Main Board I/O Primary Definitions.
2.2.3. Critical Electrical Characteristics.
The Main Board provides the primary protection circuitry to meet the product’s RF Immunity and ESD
specifications. These requirements are defined earlier in this specification.
2.3. Line Interface Unit (LIU).
The LIU provides the interface between the digital baseband module and the external analog telephone
unit(s). It’s primary functions and provisions are as follows:
• Loop start interface compatibility.
• AC loop impedance matching for all states (on hook, off hook, signaling, ringing, and talk)
• DC loop voltage supervision to external analog telephone device for all states (on hook, off hook).
• Caller ID compatible FSK signaling.
• Loop interfaces to monitor loop status.
• Analog band-limited talk/receive interface between LAU and analog telephone unit.
• DTMF Detection and Decoder capability.

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2.3.1. Functional Characteristics.
The LIU is the hardware interface between the external analog telephone device and the Qualcomm
MSM controller, which is located in the CDMA Module. The primary requirement of the LIU is to supply
the necessary electrical interface for telephone devices which comply with EIA/TIA-RS-470-A.
There are several important software-driven functions which are critical to the proper operation of the LIU
interface. Most of these functions are associated with the LIU only in that the LIU provides the necessary
signals used by the software to establish hardware timing and control. As consequence, the following
table of Functional Characteristics will include both hardware and software controlled parameters.
Characteristic Performance Criteria
Hookswitch Transition (On to Off Hook) Must Acknowledge (Idle): t < 150 ms
Must Acknowledge (Ring Trip): t < 200 ms.
Must Ignore: t <= 25 ms.
Steady State DC level: t < 300 ms
Hookswitch Transition (Off to On Hook) Must Acknowledge: t >= 1550 ms
Must Ignore: t < 100 ms
Steady State DC Level: t < 300 ms
Hookflash Signal 300 ms <= t <= 1 sec
Dial Tone Delay after Valid Off Hook
detected (assuming Network Accessed).
Tnetwork_Accessed + (20 ms <= t <= 300 ms)
NOTE: The value Tnetwork_Accessed is system
dependent. The product continuously verifies
network access conditions when powered. If a
valid PILOT signal is present, then Tnetwork_Accessed
will be very short ( < 300 mS). However, if a valid
PILOT signal is not present when OFF HOOK
occurs, then Tnetwork_Accessed is undefined. Fast Busy
will be presented to the analog loop interface.
Detection of Improper Off Hook conditions. Must be able to detect condition in which loop is
improperly active. Conditions are:
• a disconnect has been issued by the far end, but
the near end has not gone on hook after a 1
minute time-out. NOTE: The suggested
handling is to first detect the J-STD-008 Far
End Disconnect signal, then to generate an
800 mS disconnect, and then to re-issue dial
tone.
• the near end has come off hook, not for the
purpose of receiving a call, and, after a 1 minute
time-out, has not initiated a dialing sequence:
generate ROH tone.
• the near end has come off hook, initiated, but
failed to complete a dialing sequence after a 1
minute time-out: generate ROH tone. NOTE:
The LAU should support an optionally
programmable control called AUTO-SEND. If
AUTO-SEND is set TRUE, then the LAU will
transmit any collected digits to the switch
after a programmed time-out interval.
Improper Loop Termination detection. No requirement.

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Caller ID Transmission. Must be able to transmit valid Caller ID information to
the analog telephone set, as defined in relevant
Bellcore North American voice-band data transmission
specifications.
Standard Call Progress Tones These tones provide audio feedback to the user,
through the audio voice path. All Standard Call
Progress Tones, as defined by EIA/TIA-464B, Table
29, will be supported. The Tone Plan data table and
software should be designed to allow programmable
selection of different tone tables, which may be
required to support different network specifications.
To this end, the product shall support the ability to
alter the frequencies, timing, and power levels of each
specified tone.
• Dial Tone: Applied to external telephone when
user is off hook and the LAU is operating in the
Mobile Station Idle State (meaning that a valid
CDMA Pilot and Sync Channel are obtained).
• Reorder Tone: Also called “Fast Busy Tone”.
Applied to an off hook analog telephone when the
LAU is unable to acquire a valid CDMA Pilot and
Sync channel. Also applied during certain
situations to warn the user of improper operating
conditions on the LAU / Telephone interface
(dialing time-outs, etc.).
• Busy Tone: This tone should be supported.
However, there is currently no recognized mode of
operation in which the LAU would be required to
generate this tone locally.
• ROH Tone: Also called “Receiver Off Hook Tone”.
Not specified in EIA-464, but the default tone is
specified here as follows: 1400 Hz + 2260 Hz, +3
to -6 dBm per frequency into 600 ohms.
Other Call Progress Tones These tones provide the user with special audible call
progress feedback for events not covered by Standard
Call Progress tones. Specific frequencies and levels
are as defined by EIA/TIA-464B, Table 30. Software
should support use of multiple tone tables, to facilitate
setting the product operation for different market
requirements. To this end, the product shall support
the ability to alter the frequencies, timing, and power
levels of each specified tone.
• Recall Tone: This tone is applied over the air
interface by the system base station. The LAU
need not generate this tone.
• Call Waiting Tone: This tone is generated over
the air interface by the base station. The LAU need
not generate this tone.
•Stutter Dial Tone: A s
p
ecial tone which indicates

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Message Waiting status. This tone will be applied
initially to an off hook analog telephone if the LAU
has received a network-provided Message Waiting
command. Feature can be enabled and disabled.
Tone characteristics defined per Bellcore document
SR-INS-002461.
• Loss of RF Tone: Standard Reorder Tone.
• Battery Low Tone: 2, 3, or 4 beep tone.
Individual tone duration is 250 mS, with a 50% duty
cycle. Tone occurs once every 10 minutes when
battery level drops within 30 minutes of full
discharge, and once every minute when battery
charge level drops within 5 minutes of full
discharge. Feature can be disabled.
Extension Support (Ringing) Product must provide fully functional support for up to
4 REN equivalents. Typical electronic telephones
have RENs between 0.5 - 1.0. Electro-mechanical
phones are typically between 1.0 - 2.0. Four (4) REN
= 1.75 KΩ.
PBX/Key System Support There is no current requirement for the LAU to
interface with PBX or key system trunk cards. It is
desirable , but not required for the product to interface
with 1A2 and 1A3 trunks.
DTMF Tone Detection The DTMF detection circuitry must detect any valid
DTMF tone which complies with the requirements of
EIA-470-A within 50 mSec of receipt over a 100Ω
loop length.
Caller ID Number Delivery Per industry specifications as follows:
• Bellcore GR-30
• Bellcore TR-NWT-000031
• Cellular(PCS) Feature Specification
Caller Name Delivery Per industry specifications as
• Bellcore GR-30
• Bellcore TR-NWT-001188
• Cellular(PCS) Feature Specification
Note: This feature is not currently supported by the J-
STD-008 specification, although the basic hardware
capability will be available in the product. A general
message stating that “Name is Unavailable” will
appear on compatible Caller ID units.
Serial Interface Logic level outputs. Special RS-232 converter is
required to interface to a computer.
Table 2.3.1.-1: Line Interface Functional Requirements.

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2.3.2. Electrical Characteristics.
The LIU must conform to the electrical characteristics for analog loop start interfaces defined by EIA-464-
B, except where modified below.
Characteristic Performance Criteria
Tip-Ring AC Impedance (Off Hook) 270 Ω+ (750 Ω|| 0.15 µF)
Ring Signal 19 Hz <= fring <= 21 Hz
Vrms >= 45 Vrms into 1.75 KΩimpedance on a 1000 ft.
loop.
Ringing Waveform: Trapezoidal signal is acceptable.
1.2 <= Peak / RMS <= 1.6.
Tip to Signal Ground Impedance No requirement.
Ring to Signal Ground Impedance No requirement.
LIU Loop Supply Voltage / Current Idle State: Per EIA-464.
Talk State: Per EIA-464, plus 25 mA < Isc < 40 mA for
RL< 100 Ω. Also required to drive at least 25 mA into
a standard British Telecom 400Ωload.
Ring State: Per EIA-464, plus 100 mA > Isc> 70 mA
for RL< 100 Ω.
Maximum Supported Loop Length 100 Ω.
Audio Path Frequency Response 300 - 3300 Hz, +/- 3 dB.
Audio Path Distortion Limits TX: System must accurately decode all DTMF digits
when signals are applied to input at maximum
allowed levels.
RX: Assuming a network signal input level of 3 dBm,
and an internal RX loss plan of 3 dB, output
signal levels must not show clipping over the
range from 300 -3300 Hz.
Loss Plan TX: Total gain in is -4.1 dB, and is comprised of a
hardware gain from Tip/Ring to the CODEC PCM
output after A/D conversion of -4.1 dB and 0 dB
gain in the baseband DSP function, measured at
1 kHz. The PCM bit stream is processed or
generated by a 900 ΩCODEC.
RX: Total gain is programmable from -5 dB to -14 dB
and is comprised of a programmable range of +3
dB to -6 dB in the baseband DSP function
(including vocoder) and a hardware gain from the
CODEC PCM inputs (before D/A conversion) to
Tip/Ring terminated 600 Ωload of -8 dB,
measured at 1 kHz. The PCM bit stream is
processed or generated by a 900 ΩCODEC.
Serial interface Logic “1”:
Logic “0”:
Table 2.3.2.-1: Primary LIU Electrical Characteristics, Where Different from EIA-464.

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2.3.3. Applicable Specifications.
These specifications provide necessary information concerning the operation and interface requirements
for the LIU module. This list is intended as a source of reference, and is not meant as a strict list of
compliance requirements.
• EIA/TIA RS-470-A (North American Analog Telephone Interface Requirements) - defines
interface requirements for telephone devices. Document is a reference showing performance
ranges of most high-quality analog telephone devices.
• EIA/TIA RS-464-B (PBX Interface and Operation Requirements) - defines the interface and
operational requirements for Private Branch Exchange switches. The analog interface between
these systems and analog telephone devices is a subset of this specification.
• FCC Part 68 (North American Analog Telephone Network Compliance Requirements) -
defines the requirements which the U.S. Federal Communications Commission imposes upon all
subscriber devices which are permitted to connect to the U.S. public telephone network. This
document is a reference. It’s requirements are not imposed upon this product, because the
product is not to be connected to a functioning telephone network.
• Bell System Switched Network Capability and Performance Specification, Technical
Reference PUB 61100, Description of the Analog Voiceband Interface Between the Bell
System Local Exchange Lines and Terminal Equipment - reference document. Defines
operation of North American Public Telephone Network analog interface.
• EIA/TIA - 571 -1996, Environmental Considerations for Telephone Terminals.
• TIA/EIA - 631 -1996, Telecom Telephone Terminal Equipment - Radio Frequency Immunity
Requirements for Equipment Having an Acoustic Output.
• Bellcore GR-30, Voice Band Data Transmission Interface - defines the analog signaling
interface used to provide Incoming Caller Identification data over the analog public telephone
network.
• TR-NWT-000031, Issue 4, CLASS Feature: Calling Number Delivery - defines specific
transmission specification for ICLID Calling Number delivery.
• TR-NWT-001188, Issue 1, CLASS Calling Name Delivery Generic Requirements - defines
specific transmission specification for ICLID Calling Name delivery
• TA-NWT-000575, Issue 1, CLASS Feature: Calling Identity Delivery on Call Waiting - defines
specific transmission specification for ICLID Calling Name and Number delivery with Call Waiting
services. This specification is provided as a reference. The product is not intended to comply with
this requirement at this time.
2.4. Power Supply Module (PSM).
The Power Supply module receives unregulated power from the Battery Management module, and then
provides the necessary regulated dc outputs required to operate the other circuitry within the LAU. The
PSM also contains the unit’s three Status Indicators. The specific requirements of this module are
defined in detail below.
2.4.1. Functional Characteristics.
There are no special functional requirements for the Power Supply Module.
2.4.2. Electrical Characteristics.

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The PSM must conform to the following electrical characteristics, under all operating conditions, unless
specifically indicated.
Characteristic Performance Criteria Conditions
5V Supply Output Max Current: 1.45 A.
DC Output: 4.85 to 5.25V.
Max Ripple: < 100 mVrms.
Efficiency: > 90%
All operating temperatures, transmitter
at full power, external loop active with
full range of loads.
-24V Supply
Output
Max Current: 50 mA.
DC Output: -22.0 to -26.0 V.
Max Ripple: < 500 mVrms,
Efficiency: > 90%
All operating temperatures, transmitter
at full load, external loop active with full
range of loads.
-65V Supply
Output
Max Current: 100 mA.
DC Output: -61.0 to -69.0 V.
Max Ripple: < 500 mVrms
Efficiency: > 80%
All operating temperatures, transmitter
at full load, external loop active with full
range of loads.
Power efficiency
(ac operation)
Talk Mode: > 80% at max output.
Standby Mode: > 80% at max output.
All operating conditions, transmitter at
full power operation.
Power efficiency
(battery operation)
Talk Mode: > 80% at max output.
Standby Mode: > 80% at max output.
All operating conditions, transmitter at
full power operation.
Table 2.4.2.-1: Primary PSU Electrical Characteristics.
2.5. Battery Management Module (BMM).
The Battery Management Module (BMM) manages the distribution and source for the LAUs primary
power sources, battery and ac power. As such, it provides the following basic functions:
• Monitors the status of the input ac power signal, and controls the switch-over between ac power
and battery reserve power when ac power failure occurs.
• Measures the charge level of the reserve battery, and controls the charging input to the battery
according to the discharge level, battery temperature, and ambient temperature conditions.
• Generates necessary power-on reset signals to other modules within the LAU, assuring proper
initialization when power is applied.
• Provides output indications of certain power-related fault conditions.
2.5.1. Functional Characteristics.
These are the functional requirements for the Battery Management Module.
Characteristic Performance Criteria
Battery / AC Power Source Selection The BMM controls the source of electrical power for
the LAU by monitoring the ac power input and the dc
battery level. The following criteria determine which
source provides the operating power for the LAU
circuitry:
• If AC power is present on the 19 VOLTS IN line,
then battery supply power is turned of.
•If Batter
y
p
ower is
p
resent and AC
p
ower is not,

PS-SAU-1900E
Mar. 8th,1999 (Rev. 0.0)
--- CONFIDENTIAL AND PROPRIETARY ---
18
then battery power is set as the primary power
source, as long as the battery voltage is greater
than ∼10.2 Vdc.
• If battery voltage falls below ∼10.2 Vdc, then
battery operation will not be permitted even if ac
power is lost.
Battery Charge Control The BMM controls the charger operation for the lead
acid battery based upon the following criteria:
• If battery voltage is below ∼12 Vdc, then
charging shall occur.
• If the internal temperature of the product is
greater than 50(+/-5)°
°°
°Cor less than -15(+/-5)°
°°
°C
then charging shall not occur, regardless of
battery voltage level.
• Total charge time from ∼10 Vdc to *100% charge
shall be less than 36 hours. Charge time to
80% full charge shall be less than 24 hours.
* 100% charge means provide enough power to meets standby and talk time.
Table 2.5.1.-1: BMM Functional Characteristics.
2.5.2. Electrical Characteristics.
Charge Lead Acid Battery with current limited constant voltage.
(13.8Volts +/-0.3Volts nominal at +25C)
Provide temperature compensation with -0.026V/C of slope.
2.6. CDMA Module (CDM).
The CDM provides the CDMA RF interface between the outside world and the CDMA modulated IF data
signals originating or terminating on the Base Band circuit-a part of CDMA Module- and process the
digital signal to audible signals through Mobile Station Modem(MSM) and codec.
This CDMA Module is treated as a “black box”, with certain inputs and outputs. These inputs and outputs
are generally defined in the following sections.
• Embedded control of all LAU-specific functions, e.g., SLIC operation, Caller ID generation, LED
control, Analog Fax Module control, etc.
• A/D conversion of analog signals from the telephone interface to suitable digital data for the CDMA
air interface.
• D/A conversion of received digital CDMA air interface data to analog signals suited to the telephone
interface.
• J-STD-008 air interface control.
• Serial interface between the J-STD-008 air interface standard and the LAU serial data port.
• Provide LCD function. Even though the LCD is not used on SAU-1900E.
The CDMA Module (CDM) contains the components which make up the product’s microcontroller unit.
The backbone of this circuit is the MSM, with it’s necessary peripheral devices (including RAM, flash,
NV_RAM).
2.6.1. I/O Definitions.

PS-SAU-1900E
Mar. 8th,1999 (Rev. 0.0)
--- CONFIDENTIAL AND PROPRIETARY ---
19
The CDMA I/O points are as follows.
Pin No. Signal Name(Function) Signal Description
1 GND(Ground) Ground to +5V.
2 GND(Ground) Ground to +5V.
3 +5V(+5Volts) +5Volts main power supply for CDMA board.
4 +5V(+5Volts) +5Volts main power supply for CDMA board.
5 +5V(+5Volts) +5Volts main power supply for CDMA board.
6 +5V(+5Volts) +5Volts main power supply for CDMA board.
7 AUX_PCM_DOUT MSM terminal 138 AUX_PCM_DOUT, Not used with
SAU-1900E
8 AUX_PCM_CLK MSM terminal 142 AUX_PCM_CLK, Not used with SAU-
1900E
9 AUX_PCM_DIN) MSM terminal 139 AUX_PCM_DIN, Not used with SAU-
1900E
10 AUX_PCM_SYNC. MSM terminal 140, Not used with SAU-1900E
11 +3.3V(+3.3V_D) +3.3Volts output from CDMA Module.
Can drive up to 15mA for digital circuits.
12 GPIO9(GPIO9) General GPIO9, tied to Analog Fax Module.
Function is not defined yet.
13 KEYSENSE0(OFF_HOOK_IN
T(3.3V))
Keysense0 line, used to detect OFF_HOOK status.
1= On Hook, 0=Off Hook.
14 KEYSENSE1(DTMF_DV) Keysense1 line, used to detect Valid DTMF signal.
1= Invalid, 0=Valid.
15 U20_X2(MAIN_TEMP) A/D input for Main board(battery) temperature sensor.
16 KEYSENSE2(DTMF_D1) Keysense2 line, used to detect DTMF digit in
conjunction of KEYSENSE3(D2), GPIO1(D4),
GPIO5(D8).
17 KEYSENSE3(DTMF_D2) Keysense3 line, used to detect DTMF digit in
conjunction of KEYSENSE2(D1), GPIO1(D4),
GPIO5(D8).
18 U20_X0(AC_MONI) A/D input for AC power status monitor
19 U20_X3(V_BATT) A/D input for Battery voltage level.
20 GPIO1(DTMF_D4) General GPIO1, used to detect DTMF digit in
conjunction of KEYSENSE2(D1), KEYSENSE3(D2),
GPIO5(D8).
21 GPIOI2(EXP_STR) General GPIO2, used to drive MC14094 port expander
STR line in conjunction of GPIO3(EXP_CLK) and
GPIO4(EXP_DATA).
22 GPIO3(EXP_CLK) General GPIO3, used to drive MC14094 port expander
CLK line in conjunction of GPIO2(EXP_STR) and
GPIO4(EXP_DATA).
23 GPIO4(EXP_DATA) General GPIO4, used to drive MC14094 port expander
DATA line in conjunction of GPIO2(EXP_STR) and
GPIO3(EXP_CLK).
24 GPIO0(RING_BURST) General GPIO0, used to generate ring signal(20Hz
Square wave).
25 TMS(JTAG_TMS) One of the JTAG line.
26 GPIO5(DTMF_D8) General GPIO5, used to detect DTMF digit in
con
j
unction of KEYSENSE2
(
D1
)
, KEYSENSE3
(
D2
)
,

PS-SAU-1900E
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--- CONFIDENTIAL AND PROPRIETARY ---
20
GPIO1(D4).
27 KEYSENSE4(KEY_PAD2) One of the KEYSENSE line. Low this line will cause
interrupt service.
Not used with SAU-1900E but can be used to receive
serial keypad information from external key pad detector
module in conjunction of GPIO26(KEY_PAD1)
28 TCK(JTAG_TCK) One of the JTAG line.
29 TDO(JTAG_TDO) One of the JTAG line.
30 TDI(JTAG_TDI) One of the JTAG line.
31 \TRST(JTAG_\TRST) One of the JTAG line.
32 RESIN(JTAG_RESIN) One of the JTAG line, MSM Reset line.
33 SLIC_RX+(RX CODEC OUT) Demodulated received audio signal coming out from
codec.
34 GND(Ground) Ground to SLIC_RX+
35 SLIC_TX+(TX CODEC IN) Transmit audio signal fed in to codec.
36 GND(Ground) Ground to SLIC_TX+
37 SIGNAL_LED 0 = Turn On LED
1 = Turn Off LED
38 GPIO\19(EXP_\OE) Inverted General GPIO19, used to drive MC14094 port
expander Output Enable(OE) line.
39 \CTS(\CTS) Clear To Send line.
40 DP_RX_DATA(MSM_RXD) Serial port received data string. Data levels are 3.3 volt,
ground referenced, unipolar digital signals. Maximum
data rates are 115.2 kbaud.
41 \RFR(\RFR) Ready to Send Line
42 DP_TX_DATA(MSM_TXD) Serial port transmitted data string. Data levels are 3.3
volt, ground referenced, unipolar digital signals.
Maximum data rates are 115.2 kbaud.
43 GPIO26 MSM GPIO26 port, not used with SAU-1900E.
44 BOOT_MODE(BOOT_MODE) BOOT_MODE.
0 = Normal Operation.
1 = BOOT Mode.
45 GPIO27 VOCODER PCM IN port, not used with SAU-1900E.
46 LCD_SER_CS(LCD_CS) LCD Drive line, not used with SAU-1900E.
47 LCD_SER_CLK(LCD_CLK) LCD Drive line, not used with SAU-1900E.
48 LCD_SER_DATA(LCD_DATA) LCD Drive line, not used with SAU-1900E.
49 RINGER MSM terminal 49, Ringer output. not used with SAU-
1900E
50 GND(Ground) Ground to +5Volts.
ANT Antenna(RF I/O) The RF input / output point for the RFM. This point
connects directly to the LAU’s external RF connector.
Table 2.6.1.-1: RF Module I/O Definitions.
2.6.2. Electrical Characteristics.
The electrical characteristics of the CDM are defined by TIA/EIA J-STD-008 and J-STD-018,
Recommended Minimum Performance Standards for 1.8 to 2.0 GHz Code Division Multiple
Access(CDMA) Personal Stations.