AMERITECH AM8a User manual

MODEL AM8a
PCM/VF CALL ANALYZER
INSTRUCTION MANUAL

Model AM8a
PCM/VF CALL ANALYZER
INSTRUCTION MANUAL
February 10, 2000
Technical Data Subject to
Change without Notice
For extra copies of this
manual, order Part
No. 18-0037 © 2000 Ameritec Corporation

AM8a Instruction Manual (18-0037) CAUTION/REVISIONS
December 2, 1999 0037-TPG.L_18
ii
When using the padded carrying case for the AM8a (P/N 87-0070C), DO NOT PLACE the power cord
around the side of the AM8a in the manner demonstrated in Figure 1.
Instead, be certain to WIND THE CORD UNDER THE CASING in the area between the feet, as shown in Figure
2.
Failure to follow this procedure could cause deterioration of the cord and increase the possibility of electric
shock.
AM8a
(Top of Casing)
Figure 1 — WRONG Figure 2 — CORRECT
Rear Panel
Bracket
AM8a
(Bottom of Casing)
Record of Revisions
December 1991 Original Issue.
February 1992 General data revision.
August 1992 Software upgrade. General format change and reprint.
January 1993 General data revision.
May 1993 Changed listing fonts. Reformatted. Corrected RX connections.
March 1994 General corrections and additions. Added Test Procedure Guide.
October 1994 Logo change. Test Procedure Guide removed.
May 1995 Added Warranty, Calibration, and Repair info.
August 1996 Added E-Mail Address to logos.
K December 2, 1999 Changed GUARDms value for DTMF/MF ANALYZE 3.
L February 10, 2000 Reformatted entire manual and added MF(R1) note.

AM8a Instruction Manual (18-0037) Table of Contents
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iii
Table of Contents
1. FRONT PANEL OPERATION....................................................................................................1-1
1.1 FRONT PANEL PROGRAMMING METHODS....................................................................1-1
1.1.1 SHIFT Key.....................................................................................................................1-1
1.1.2 Arrow Keys....................................................................................................................1-2
1.2 EVENTS AND METER KEYS AND DISPLAY.....................................................................1-3
1.2.1 EVENTS ([SHIFT][1]) Key.............................................................................................1-3
1.2.2 Events Display Character Set.......................................................................................1-4
1.2.3 Dialed Digits..................................................................................................................1-7
1.2.4 METER ([SHIFT][2]) Key..............................................................................................1-7
1.3 SETUP AREA.......................................................................................................................1-8
1.3.1 CONFIG’N ([SHIFT][5]) Key..........................................................................................1-8
1.3.2 EMULATE ([SHIFT][6]) Key..........................................................................................1-8
1.3.3 ANALYZE ([SHIFT][7]) Key...........................................................................................1-8
1.3.4 AUTO DIAL ([SHIFT][8]) Key........................................................................................1-8
1.4 CONTROL ON/OFF KEYS...................................................................................................1-9
1.4.1 INPUT ([SHIFT][*, KP]) Key..........................................................................................1-9
1.4.2 TIMS ([SHIFT][#, ST]) Key............................................................................................1-9
1.4.3 TALK ([SHIFT][ VALUE]) Key.................................................................................1-10
1.4.4 AUTO ([SHIFT][
VALUE
]) Key................................................................................1-10
1.5 MENU/DATA CONTROL KEYS.........................................................................................1-10
1.5.1 FREEZE ([SHIFT][B]) Key..........................................................................................1-10
1.5.2 PRINT ([SHIFT][C]) Key..............................................................................................1-11
1.5.3 CANCEL ([SHIFT][D] Key...........................................................................................1-11
1.6 SIGNALING KEYS.............................................................................................................1-11
1.6.1 SEIZE Key...................................................................................................................1-11
1.6.2 START Key.................................................................................................................1-12
1.6.3 RING Key....................................................................................................................1-12
1.6.4 REV Key......................................................................................................................1-12
1.6.5 SEND TONE ([SHIFT][RING]) Key.............................................................................1-12

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1.7 DATA ENTRY KEYS FOR SIGNALING.............................................................................1-13
1.7.1 WAIT DT ([SHIFT][SHIFT][1] Key...............................................................................1-13
1.7.2 WAIT WINK ([SHIFT][SHIFT][2] Key..........................................................................1-13
1.7.3 WAIT ([SHIFT][SHIFT][3] Key.....................................................................................1-13
1.7.4 FLASH ([SHIFT][SHIFT][4] Key..................................................................................1-13
1.7.5 UNBALANCE ([SHIFT][SHIFT][5] Key........................................................................1-13
1.7.6 TOGGLE DIAL ([SHIFT][SHIFT][6] Key......................................................................1-13
1.7.7 BLANK ([SHIFT][SHIFT][7] Key..................................................................................1-13
1.8 SIGNALING STATUS LEDs...............................................................................................1-14
1.9 STORE SETUP..................................................................................................................1-15
1.10 RECALL SETUPS............................................................................................................1-16
1.10.1 RECALL Setup Parameters......................................................................................1-16
1.10.2 RECALL Auto Dial Sequence...................................................................................1-16
1.11 SPEAKERPHONE/AUDIO MONITOR.............................................................................1-16
1.11.1 Speakerphone in talk mode......................................................................................1-16
1.11.2 Handset.....................................................................................................................1-17
1.11.3 Audio Monitoring.......................................................................................................1-17
2. CONFIGURATION PARAMETERS...........................................................................................2-1
2.1 MODE CONFIG....................................................................................................................2-1
2.1.1 IMITATE........................................................................................................................2-1
2.1.2 MODE............................................................................................................................2-1
2.2 CIRCUIT CONFIG................................................................................................................2-2
2.2.1 ANALOG IMPEDANCE.................................................................................................2-2
2.2.2 ANALOG/PCM..............................................................................................................2-2
2.3 PCM CONFIG 1 and PCM CONFIG 2.................................................................................2-3
2.3.1 INPUT............................................................................................................................2-3
2.3.2 FRAMING......................................................................................................................2-4
2.3.3 ZERO SUP....................................................................................................................2-4
2.3.4 CHAN............................................................................................................................2-5
2.3.5 OFF HK a/b or ON HK a/b............................................................................................2-5

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2.4 TRUNK CONFIG..................................................................................................................2-5
2.4.1 TRUNK TYPE...............................................................................................................2-6
2.4.2 SLC® TYPE..................................................................................................................2-6
2.4.3 E & M TYPE..................................................................................................................2-6
2.5 DISPLAY CONFIG 1 and CONFIG 2...................................................................................2-7
2.5.1 MODE............................................................................................................................2-7
2.5.2 DIGit DETection............................................................................................................2-8
2.5.3 SLC® MSG...................................................................................................................2-8
2.5.4 SLC® Activity Message................................................................................................2-9
2.5.5 T/t Mask (single-tone event selection)..........................................................................2-9
2.6 RS232 CONFIG....................................................................................................................2-9
2.6.1 BAUD RATE..................................................................................................................2-9
2.6.2 PARITY.......................................................................................................................2-10
2.6.3 CR DELAYsec.............................................................................................................2-10
2.7 SECURITY CONFIG..........................................................................................................2-10
2.7.1 PASSWORD...............................................................................................................2-10
2.7.2 SETUP PROTECT......................................................................................................2-10
2.8 PRINT CONFIG..................................................................................................................2-11
2.8.1 off................................................................................................................................2-11
2.8.2 all calls, events only....................................................................................................2-11
2.8.3 all calls, events & details.............................................................................................2-11
2.8.4 flawed calls, events only.............................................................................................2-11
2.8.5 flawed calls, events & details......................................................................................2-11
2.9 CLOCK CONFIG................................................................................................................2-12
2.10 AM8a CONFIG.................................................................................................................2-12
3. EMULATE PARAMETERS........................................................................................................3-1
3.1 LOOP EMULATE..................................................................................................................3-1
3.1.1 VOLTAGE.....................................................................................................................3-1
3.1.2 LENGTH........................................................................................................................3-1

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3.2 TERMINATION EMULATE...................................................................................................3-1
3.2.1 2.16uf............................................................................................................................3-1
3.2.2 DC HOLD......................................................................................................................3-2
3.3 DIALING EMULATE.............................................................................................................3-2
3.3.1 LOOP TYPE..................................................................................................................3-2
3.3.2 START SIGNAL............................................................................................................3-2
3.4 PULSE EMULATE................................................................................................................3-2
3.4.1 SPEEDpps....................................................................................................................3-2
3.4.2 BREAK%.......................................................................................................................3-2
3.4.3 INTRDIGITms...............................................................................................................3-2
3.5 DTMF/MF EMULATE 1........................................................................................................3-3
3.5.1 HI:dBm/hz%..................................................................................................................3-3
3.5.2 LO:dBm/hz%.................................................................................................................3-3
3.6 DTMF/MF EMULATE 2........................................................................................................3-3
3.6.1 ON/OFFms....................................................................................................................3-3
3.7 SEND TONE EMULATE.......................................................................................................3-4
3.7.1 LEVELdBm....................................................................................................................3-4
3.7.2 FREQUENCYhz............................................................................................................3-4
3.8 DIAL TONE EMULATE 1......................................................................................................3-4
3.9 DIAL TONE EMULATE 2......................................................................................................3-4
3.9.1 T1:dBm/hz.....................................................................................................................3-5
3.9.2 T2:dBm/hz.....................................................................................................................3-5
3.9.3 DL SNDms....................................................................................................................3-5
3.10 RECALL EMULATE............................................................................................................3-5
3.10.1 HOOKFLASHms.........................................................................................................3-5
3.10.2 LINE UNBALms..........................................................................................................3-5
3.11 RINGING EMULATE 1.......................................................................................................3-6
3.11.1 ON/OFFms..................................................................................................................3-6
3.12 RINGING EMULATE 2.......................................................................................................3-6
3.12.1 VOLTAGEvrms...........................................................................................................3-6
3.12.2 FREQUENCYhz..........................................................................................................3-6

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3.13 START TIME EMULATE....................................................................................................3-7
3.13.1 DLY:BGN/ENDms.......................................................................................................3-7
3.13.2 WINK:BGN/DURms....................................................................................................3-7
3.14 SF EMULATE.....................................................................................................................3-7
3.14.1 LEVEL.........................................................................................................................3-7
3.14.2 FREQ+%hz.................................................................................................................3-7
4. ANALYSIS PARAMETERS........................................................................................................4-1
4.1 HOOK ANALYZE..................................................................................................................4-1
4.1.1 FLASHms(min)..............................................................................................................4-1
4.1.2 DISCONNECTms(min).................................................................................................4-1
4.2 STRT SIG (START SIGNAL) ANALYZE: EXPECTED TYPE..............................................4-2
4.2.1 dialtone/wink.................................................................................................................4-2
4.2.2 dialtone/delay................................................................................................................4-2
4.2.3 dialtone/….....................................................................................................................4-2
4.3 DT STRT (DIALTONE START) ANALYZE: DIALTONE RCVDms (min/max).....................4-2
4.4 DLY STRT (DELAY START) ANALYZE..............................................................................4-3
4.4.1 STRT BGNms(min/max)...............................................................................................4-3
4.4.2 ENDms(min)..................................................................................................................4-3
4.5 WINK STRT..........................................................................................................................4-3
4.5.1 WINK BGNms(min).......................................................................................................4-3
4.5.2 DURms(min/max)..........................................................................................................4-3
4.6 PULSE ANALYZE 1.............................................................................................................4-4
4.6.1 SPEEDpps(min/max)....................................................................................................4-4
4.6.2 BREAK%.......................................................................................................................4-4
4.7 PULSE ANALYZE 2.............................................................................................................4-4
4.7.1 INTERDIGITms(min).....................................................................................................4-4
4.8 DTMF/MF ANALYZE 1.........................................................................................................4-5
4.8.1 LO BANDdB(min/max)..................................................................................................4-5
4.8.2 HI BANDdB...................................................................................................................4-5

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4.9 DTMF/MF ANALYZE 2.........................................................................................................4-5
4.9.1 FREQ%(max)................................................................................................................4-6
4.9.2 TWISTdB(min/max).......................................................................................................4-6
4.9.3 DTMF Frequencies.......................................................................................................4-6
4.9.4 MF(R1) Frequencies.....................................................................................................4-7
4.10 DTMF/MF ANALYZE 3.......................................................................................................4-8
4.10.1 TONE ON/OFFms(min)..............................................................................................4-8
4.10.2 GUARDms...................................................................................................................4-8
4.11 THRESHOLD ANALYZE....................................................................................................4-8
4.11.1 TONEdBm(min)...........................................................................................................4-8
4.11.2 OFF HKvdc(min).........................................................................................................4-9
4.11.3 Procedure to Set OFF HKvdc(min) Threshold............................................................4-9
5. AUTO AND MANUAL DIALING ................................................................................................5-1
5.1 STORE AUTODIAL SEQUENCE.........................................................................................5-1
5.2 SELECT AND USE AUTODIAL SEQUENCE......................................................................5-2
5.3 MANUAL DIALING...............................................................................................................5-2
6. METER DISPLAY........................................................................................................................6-1
6.1 MEASURE/SCALE MENU...................................................................................................6-1
6.2 MEASURE DISPLAY (MAKING MEASUREMENTS)..........................................................6-1
6.3 METER SELECTIONS AND CONNECTIONS.....................................................................6-2
6.4 LOOP START, GROUND START, DID – ANALOG MEASURE.........................................6-7
6.4.1 V t-r dc or ac..................................................................................................................6-7
6.4.2 V cm dc or ac................................................................................................................6-7
6.4.3 V t-g dc or ac.................................................................................................................6-7
6.4.4 V r-g dc or ac.................................................................................................................6-7
6.4.5 It(mA) dc........................................................................................................................6-7
6.4.6 Tone..............................................................................................................................6-8

AM8a Instruction Manual (18-0037) Table of Contents
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6.5 E & M and SF – ANALOG MEASURE.................................................................................6-9
6.5.1 TX Vt-r or RX Vt-r, dc or ac...........................................................................................6-9
6.5.2 TX Vcm or RX Vcm, dc or ac........................................................................................6-9
6.5.3 Ve or Vm, dc or ac........................................................................................................6-9
6.5.4 Vsb or Vsg, dc or ac....................................................................................................6-10
6.5.5 TX Tone or RX Tone...................................................................................................6-10
6.6 E & M and SF – ANALOG MEASURE...............................................................................6-11
6.6.1 TX1 Vcm or TX2 Vcm, dc or ac..................................................................................6-11
6.6.2 RX1 Vcm or RX2 Vcm, dc or ac .................................................................................6-11
6.6.3 TX1 Tone or TX2 Tone...............................................................................................6-11
6.6.4 RX1 Tone or RX2 Tone..............................................................................................6-12
6.6.5 RX1 dBdsx or RX2 dBdsx...........................................................................................6-12
6.6.6 RX1 dBdsx or RX2 dBdsx in Emulation Mode............................................................6-12
6.6.7 RX1 dBdsx or RX2 dBdsx in Monitor Mode................................................................6-12
6.7 NOISE MEASURE..............................................................................................................6-12
6.8 PCM1 and PCM 2 BIPOLAR VIOLATION (COUNT AND STATUS) MEASURE..............6-13
6.8.1 BPV.............................................................................................................................6-13
6.8.2 FERR...........................................................................................................................6-14
6.8.3 CRC.............................................................................................................................6-14
6.8.4 SLIPS..........................................................................................................................6-14
6.8.5 YELLOW.....................................................................................................................6-14
6.8.6 BLUE...........................................................................................................................6-14
6.8.7 STATUS BLUE............................................................................................................6-14
6.8.8 STATUS YELLOW......................................................................................................6-14
6.9 PCM 1 OR PCM 2 FRAME SYNC MEASURE..................................................................6-14
6.10 PCM1 and PCM 2 TX OR RX A/B MEASURE ................................................................6-15
6.10.1 T1 Time-Slot to Voice Channel Assignment.............................................................6-15
6.10.2 SLC®96 Mode I Time-Slot to Voice Channel Assignment.......................................6-15
6.10.3 SLC®96 Mode II Time-Slot to Voice Channel Assignment......................................6-15

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6.11 SLC®96 MODE I OR II MESSAGES...............................................................................6-17
6.11.1 ALARM TX or RX......................................................................................................6-17
6.11.2 PROTECTION TX or RX...........................................................................................6-18
6.11.3 MAINTENANCE TX or RX........................................................................................6-18
6.11.4 SLC®96 II Concentrator Field Messages.................................................................6-19
7. RS232 ENTRIES AND PRINTOUTS..........................................................................................7-1
7.1 RS232 COMMAND DESCRIPTION.....................................................................................7-1
7.1.1 Terminal Commands.....................................................................................................7-2
7.1.2 Printer Commands........................................................................................................7-2
7.1.3 Setup Menu Commands for CONFIG, EMULATE, and ANALYZE..............................7-2
7.1.3.1 Display Menu.........................................................................................................7-3
7.1.3.2 Change Parameter................................................................................................7-3
7.1.3.3 Print Menu.............................................................................................................7-3
7.1.4 AUTO DIAL Setup Commands.....................................................................................7-3
7.1.5 ON-OFF (Control Toggle) Commands..........................................................................7-4
7.1.6 CALL INITIATE (Signaling) Commands.......................................................................7-4
7.1.7 EVENTS DISPLAY Commands....................................................................................7-4
7.1.8 METER DISPLAY Commands......................................................................................7-4
7.2 PRINTOUTS.......................................................................................................................7-16
7.2.1 off................................................................................................................................7-16
7.2.2 all calls, events only....................................................................................................7-16
7.2.3 all calls, events & details.............................................................................................7-17
7.2.4 flawed calls, events only.............................................................................................7-17
7.2.5 flawed calls, events & details......................................................................................7-17
7.2.6 Manual Short Print......................................................................................................7-18
7.2.7 Manual Long Print.......................................................................................................7-19
7.3 RS232 REAR-PANEL CONNECTIONS.............................................................................7-22
7.3.1 Printer Cable (48-0084) Connection...........................................................................7-22
7.3.2 Chaining Cable (48-0083) Connection.......................................................................7-23
7.3.3 Chained Unit Addressing Command..........................................................................7-23

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8. AM8a TECHNICAL SPECIFICATIONS.....................................................................................8-1
9. WARRANTY, SERVICE, AND CALIBRATION.........................................................................9-1
9.1 WARRANTY.........................................................................................................................9-1
9.2 SERVICE POLICY................................................................................................................9-1
9.3 CALIBRATION POLICY.......................................................................................................9-1
9.4 RETURN OF UNIT...............................................................................................................9-2
A. APPENDIX A: METER DISPLAY.............................................................................................A-1
A.1 PCM Operations and Data Flow..........................................................................................A-1
A.1.1 MODE CONFIG Menu Settings....................................................................................A-1
A.1.2 CIRCUIT CONFIG Menu Settings................................................................................A-6
A.1.3 PCM CONFIG 1 and CONFIG 2 Menu Settings..........................................................A-7
A.1.4 TRUNK CONFIG Menu Settings..................................................................................A-9
A.1.5 DISPLAY CONFIG Menu Settings...............................................................................A-9
A.1.6 EMULATE Menu Settings.............................................................................................A-9
A.1.7 ANALYZE Menus..........................................................................................................A-9
A.2 PCM Connection Diagrams ...............................................................................................A-10
A.2.1 Monitoring Connections..............................................................................................A-10
A.2.2 ANALYZE Menus........................................................................................................A-10

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List of Figures
Figure 1-1. AM8a Front Panel.........................................................................................................1-1
Figure 1-2. AM8a Events Display...................................................................................................1-4
Figure 1-3. Signaling Status LEDs................................................................................................1-14
Figure 6-1. Cables for AM8a Front Panel Test/Meter Connections...............................................6-3
Figure 6-2. Loop/Ground Start and DID Analog Test/Meter Front Panel Connections..................6-4
Figure 6-3. E & M and SF Test/Meter Front Panel Connections....................................................6-5
Figure 6-4. PCM T1/SLC®96 Test/Meter Front Panel Connections..............................................6-6
Figure 6-5. SLC®96 Mode 1 Channel Number to Time Slot Assignments..................................6-16
Figure 6-6. SLC®96 Alarm Conditions Meter Display..................................................................6-17
Figure 6-7. SLC®96 Alarm Conditions Meter Display..................................................................6-18
Figure 6-8. SLC®96 Alarm Conditions Meter Display..................................................................6-18
Figure 7-1. Event-only Printout.....................................................................................................7-16
Figure 7-2. Events & Details Printout (Monitor Mode)..................................................................7-17
Figure 7-3. Events & Details Printout (Emulate Mode).................................................................7-18
Figure 7-4. Manual Short Print (Meter Display Example).............................................................7-18
Figure 7-5. Manual Short Print (EMULATE Analog Switch, Te, PCM Examples)........................7-19
Figure 7-6. Manual Long Print (Meter Display Example).............................................................7-20
Figure 7-7. Manual Long Print (Setup Example)..........................................................................7-21
Figure 7-8. AM8a Rear Panel Connections..................................................................................7-24
Figure 7-9. RS232 Printer Cable ..................................................................................................7-25
Figure 7-10. RS232 Chaining Cable.............................................................................................7-25

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Figure A-1. Monitor PCM Processing Diagram..............................................................................A-2
Figure A-2. Emulate PCM Processing Diagram.............................................................................A-3
Figure A-3. Rpt (Repeat) 1 to 2 PCM Processing Diagram............................................................A-4
Figure A-4. Rpt (Repeat) 2 to 1 PCM Processing Diagram............................................................A-5
Figure A-5. Monitor PCM Connection Points..................................................................................A-6
Figure A-6. Emulate and Repeat (Drop and Insert) PCM Connections.........................................A-7

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List of Tables
Table 7-1. RS232 Terminal Commands.........................................................................................7-4
Table 7-2. RS232 Printing Commands...........................................................................................7-5
Table 7-3. RS232 CONFIGuration Menu Commands....................................................................7-6
Table 7-4. RS232 EMULATE Menu Commands............................................................................7-9
Table 7-5. RS232 ANALYZE Menu Commands...........................................................................7-10
Table 7-6. RS232 Auto Dial Setup Commands............................................................................7-12
Table 7-7. RS232 On-Off (Control Toggle) Commands...............................................................7-13
Table 7-8. RS232 Call Initiate (Signaling) Commands.................................................................7-13
Table 7-9. RS232 Events Display Commands.............................................................................7-14
Table 7-10. RS232 Meter Display Commands (Analog Voltage Measurements)........................7-14
Table 7-11. RS232 Meter Display Commands (Meter Selections)..............................................7-14
Table 7-12. RS232 Meter Display Commands (PCM Measurements)........................................7-15
Table 7-13. RS232 Meter Display Commands (Noise Measurements).......................................7-16

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AM8a Instruction Manual (18-0037) Front Panel Operation
0037-S01.L_19 February 10, 2000
1-1
1. FRONT PANEL OPERATION
1.1 FRONT PANEL PROGRAMMING METHODS
The following sub-sections describe the basic methods for programming the AM8a through
the front panel. Refer to Sections 2 through 6 for details on the parameters which may be
entered. Refer to Section 7 for the RS232 Commands that provide the means to duplicate front
panel operations from a terminal. (Figures 7-3 through 7-5 may also be used as a quick-
reference to CONFIGURE, EMULATE, and ANALYZE menu parameter descriptions.)
LOOP
TIMS
TRUNK INPUTS
CAUTION: 10 VOLTS MAX
E & M
PCM2
TX RX TX/2W RX E/M SB/SG
PCM1
TX/2W
RX
!
T/R
SEIZE
START REV
SEND TONE
RING
SHIFT
VALUE
TALK
VOLUME
POWER
HANDSET
PCM/VF CALL ANALYZER
12345 6 7
WAIT DT
WAIT WINK WAIT
FLASH
UNBAL TOGGLE
BLANK
DIAL
STORE
RECALL
CONFIG'N EMULATE ANALYZE AUTO DIAL
8 9
0
KP
*
#
ST
ABC D
MENU + / -
INPUT TIMS TALK
AUTO FREEZE PRINT CANCEL
ON / OFF
EVENTS METER
DISPLAY
SETUP
Model AM8a
T+R–
T–R+
RINGING
TRUNK /SLC
TYPE
E&M/SLC
OFFHOOK
EMULATE
a b c d PCM2 PCM1
EMULATE
GND ST/SF
a b c d
LOOP/DID R-GND
E M
/
TERMINAL/LINE
SWITCH
T-GND
FIELD
>HX9x155441XxXxHTthh
11:25:08 10-19-94 Emulate Switch
Ameritec
Figure 1-1. AM8a Front Panel
1.1.1 The SHIFT Key: Some keys may have as many as three separate functions. The SHIFT
key (see figure 1-1) controls access to each one of these.
•The No-Shift (or "Data Entry") functions for each key are either listed on the
center of the key itself (e.g. 1 through 0, *, #, A, B, C, D), or appear below the
key in black type (• (decimal point), +/- (plus or minus sign toggle), VALUE, and
MENU). These keys are usually for data entry, dialed number sequence entry, or
for scrolling through fields and parameters on the LCD display. both LEDs above
the SHIFT key must be off.
•Pressing the SHIFT Key once causes the green LED above it to come on and
activates the functions described in green type above the Data Entry keys.

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•Pressing the SHIFT key twice causes the red LED above it to come on, signifying
that functions described in red type beneath the Data Entry keys are available.
•Pressing the SHIFT key a third time returns to the No-Shift functions.
Example: To select the CONFIG'N (Configuration) Setup mode:
9. Press the SHIFT Key until green light comes on.
10. Press CONFG'N [5] in the SETUP area of the Front Panel. The green LED over
the key is then lighted for as long as CONFIG'N is in use; but, the green LED
over the SHIFT Key goes OFF and the [5] key is free for data entry.
11. Configuration parameters can then be accessed and revised via menus
displayed on the LCD display.
1.1.2 Arrow Keys: The SETUPdisplays that appear on power-up represent the current values
of the various parameters. To input new values:
•All menu screens progress from one set of parameters to another within the
CONFIG'N, ANALYZE, or EMULATE SETUP parameters. To change menus, press the
MENU
keys (also labeled "C" and "D" for data entry functions). The menu
descriptions in this manual are sequenced in accordance with the pressing of the
MENU
key.
•After selecting a desired menu, move left or right to a particular parameter field
by pressing the
FIELD
keys (also labeled "A" and "B" for data entry
functions).
•Once in the field, use the
VALUE
keys (also labeled for ON/OFF, "TALK", and
"AUTO") to scroll through the possibilities. After you have located your choice,
you "enter" it into the system simply by moving to the next field (step 2) or by
changing menus (step 1).
•Numerical data may be directly keyed in or you may use the
VALUE
keys to
scroll to the desired value. The entry is made by moving to another field or menu.
For most numeric values, direct key-in will cause leading zeroes to fill the field to
the left. These digits are cleared when the next field is selected.

AM8a Instruction Manual (18-0037) Front Panel Operation
0037-S01.L_19 February 10, 2000
1-3
•When the
FIELD
key is pressed while at the first field of a menu, the previous
menu will be displayed and the data that was displayed will be entered (within the
permitted range). Similarly, pressing the
FIELD
key at the last field will
display the next menu.
NOTE: The range of numerical values are listed under the Technical
Specifications (and in the figures that describe RS232 Commands in
Section 7), and you cannot input data that exceeds the maximum of the
range given. If you do key-in a larger (or smaller) number, the largest
(or smallest) allowable value will be entered.
1.2 EVENTS AND METER KEYS AND DISPLAY
The EVENTS and METER keys in the DISPLAY area on the front panel are used to select test
results and measured data. Sub-sections 1.2.1 through 1.2.4 describe the kinds of data
provided by pressing these keys (the [SHIFT] key must first be pressed so that its green LED is
lighted):
1.2.1 EVENTS ([SHIFT][1]) Key: This causes the Call Event characters to appear on the first
line of the display (Figure 1-2). The EVENTSLED will also begin flashing (unless
FREEZE has been activated - see 1.5.1). Up to 40 characters may be displayed at one
time, but the display may be scrolled with the
FIELD
keys to display a total of 80
characters.
A flashing digit or event indicates that the event was generated from the Analog Switch
("far end" for PCM). A steady-state display indicates that the event was generated
from the analog Te/Line ("near end" for PCM); see note under 1.2.2 for exceptions.
The second line of the Events Display gives a complete analysis of an event. Position
the cursor on whatever character of the first line you choose by using the
FIELD
keys. The second line of the display immediately indicates the available data for that
event.