Mitel SX-200 DIGITAL Pabx Engineering Information Manual

							General-Maintenance Information 
TABLE 7-3 
TEST LINE STATUS TONES 
Tone Type Meaning 
Dial tone System is waiting for command input. 
Camp-on tone (single The attempted operation was 
beep) successful (Pass). 
Reorder tone* 
Trunk camp-on tone 
(double beep) The attempted operation* was 
unsuccessful (fail). 
Test was inconclusive. 
Ringback tone (continuous) Diskette information has been loaded 
into RAM; insert new diskette (see 
paragraph 9.22). 
ack tone (double Initial maintenance access. 
*Failure of any of the test line command sequences will necessitate 
the use of the more sophisticated maintenance tools available from 
the maintenance terminal or console. Refer to Section MITL9108- 
093-351-NA, RS-232 Maintenance Terminal. 
Commands Available 
7.08 Although the complete set of maintenance commands are not 
provided, the available test line commands permit the main- 
tenance person to perform most maintenance functions. For a com- 
plete list of the available commands, see Table 7-l. The commands are 
described below. 
Specifying Equipment 
7.09 Many of the test line command sequences require the main- 
tenance person to specify a circuit or junctor as part of the 
command input. Circuits are specified using their physical location 
numbers (bay, slot, circuit, subcircuit). For example, a receiver circuit at 
location Bay 2, Slot 3, Circuit 3, Subcircuit 4 would be specified as “02 
03 03 04”. A line circuit at location Bay 2, Slot 1, Circuit 6 would be 
specified as “02 01 06 00”. Note that circuits with no subcircuit number 
(Le., lines and trunks) must be specified with “00” as the subcircuit. 
7.10 Junctors are specified using their assigned junctor numbers 
and the required bay number. The junctor number is a 2-digit 
number from 00 to 31; the bay number is a 2-digit number from 01 to 
05. For example, Junctor 5 in Bay 3 would be specified as “05 03”. 
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							General Maintenance Information 
Normal Extension Calls 
7.11 The test line has access to normal extension facilities, and is 
subject to Class Of Service (COS) and Class Of Restriction 
(COR) restrictions. It is not necessary to enter the test line access 
code or a special command code to make normal extension calls. 
Direct Trunk Select Command (DT) 
7.12 This command allows the maintenance person to directly select 
any trunk in the system from the test line. To select a trunk, 
enter the test line access code, followed by the direct trunk select 
code (38), followed by the physical location number of the required 
trunk. If the trunk is not busy and in working order, the status indica- 
tors will revert to whatever was present before the testline was ac- 
cessed and dial tone will be heard. The trunk is then ready for use. 
7.13 If the trunk is in use (busy) at the time of access, it is not 
selected; if the trunk is not functional, the status indicators will 
read “FA”. 
Busy-Out Command (BO) 
7.14 This command allows the maintenance person to busyout any 
peripheral device in the system except consoles and the test 
line circuit. To do this, enter the test line access code, followed by the 
Busy-Out device code (26), followed by the physical location number 
of the device. If the device was in use (busy) at the time of access, the 
status indicators will read “PA” and the trunk will be busied as soon as 
it reaches the idle state. If the operation succeeds, the status indica- 
-tars will read “PA” and a single beep tone will be heard. “FA” and 
reorder tone indicate failure - see Table 7-2. 
Return Device To Service Command (RS) 
7.15 This command allows the maintenance person to return to 
service any peripheral device that was previously removed from 
service via maintenance. To do this, enter the test line access code, 
followed by the Return Device to Service code (77), followed by the 
physical location number of the device. “PA” on the status indicators 
and a single beep tone will indicate that the device was returned to 
service. “FA” and reorder tone indicate failure - see Table 7-2. 
Busy-Out Junctor Command (BJ) 
7.16 This command allows the maintenance person to remove from 
service any analog junctor in the system. To do this, enter the 
test line access code, followed by the Busy-Out Junctor code (25), 
followed by the junctor number, and the bay number. “bb” on the 
status indicators and a single beep tone will indicate that the junctor 
was busied-out. “FA” and reorder tone indicate failure - see Table 7-2. 
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							General Maintenance Information 
Return Junctor To Service Command (RJ) 
7.17 This command allows the maintenance person to return to 
service any analog junctor that was previously removed from 
service via maintenance. To do this, enter the test line access code, 
followed by the Return Junctor to service code (75), followed by the 
junctor number and the bay number. “PA” on the status indicators and 
a single beep tone indicate that the junctor was returned to service. 
“FA” and reorder tone indicate failure - see Table 7-2. 
Test Device Command (TD) 
7.18 This command allows the maintenance person to test any pe- 
ripheral circuit in the digital bays. To test a device, enter the 
test line access code, followed by the Test Device code (83), followed 
by the physical location number of the device. “PA” on the status 
indicators and a single beep tone indicate that the test passed. “FA” 
and reorder tone indicate that the test failed. 
Test Junctor Command (TJ) 
7.19 This command allows the maintenance person to test any of 
the analog junctors in any bay in the system. To test a junctor, 
enter the test line access code, followed by the Test Junctor code (85), 
followed by the junctor number and the bay number. If the junctor was 
in use (busy) at the time of access, the status indicators will read “bb”; 
attempt the test later. “PA” on the status indicators and a single beep 
tone indicate that the test passed. “FA” and reorder tone indicate that 
the test failed. 
Dump Logs Command (DL) 
7.20 This command allows the maintenance person to print the sys- 
tem maintenance log on to the system printer. To print (dump) 
the logs, enter the test line access code, followed by the Dump Logs 
code (35). “PA” on the status indicators and a single beep tone indicate 
that the system has started sending the logs to the printer. “FA” and 
reorder tone indicate failure - see Table 7-2. 
Test Printer Command (TP) 
7.21 This command allows the maintenance person to test the sys- 
tem printer. To do this, enter the test line access code, followed 
by the Test Printer code (87). The printer should then print two full 
pages of all of the printable characters. “PA” on the status indicators 
and a single beep tone indicate that the system has started sending 
test data to the printer. “FA” and reorder tone indicate that the test 
failed. 
Copy Database Command (CD) 
7.22 This command allows the maintenance person to copy the 
database from the system floppy diskette onto another system 
floppy diskette. To copy the database, do the following: 
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							General Maintenance Information 
1. 
2. 
3. 
4. 
5. 
6. 
7. 
a. 
Enter the test line access code. When the system is ready 
audiable ringing is heard, followed by dial tone. 
Enter the Copy Database code (23) - silence is heard. 
Wait until ringback, and MCC 7-segment displays read “CC”. 
Remove the original diskette - audiable ringback continues. 
Inset-t the new diskette. 
Enter “1” to begin copying to the new diskette, ringback stops 
and the test line will be silent. 
Wait until the status indicators read “CC”, then enter “2” to 
continue to normal operation. 
After entering “2” the status indicators will read “PA” and .a 
single burst of tone will be provided to indicate that the action 
completed successfully. 
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							General Maintenance Information 
8. MAINTENANCE CONTROLS AND INDICATORS 
General 
8.01 The following paragraphs describe the maintenance controls 
and indicators found on the components of the SX-200@ DIGI- 
TAL Private Automatic Branch Exchange. Most of the indicators are 
software-controlled, and provide maintenance personnel with informa- 
tion on the current status of the SX-200a DIGITAL PABX. 
Maintenance Panels 
8.02 Most of the SX-200@ DIGITAL PABX maintenance functionality 
is accessed through the maintenance panels. The maintenance 
panels are described in detail in Part 3 of this Section; further func- 
tionality is described in Section MITL9108-093-351-NA, RS-232 Main- 
tenance Terminal. 
Main Control Card 
8.03 On the Main Control Card, there are five status LEDs, two 
7-segment LED status indicators, and two pushbuttons. All of 
these controls and indicators are labelled clearly on the Main Control 
Card’s front panel (see Figure 8-l). The functions of the controls and 
indicators are described in the following paragraphs. 
8.04 System Reset Button. As the name suggests, this is the 
manual system reset button. When pressed, the system will 
cease all activity, run all initialization tests, and reload the software 
from the floppy diskette. Note that this should never be done while the 
SX-200@ DIGITAL PABX is handling traffic, as all calls will immediately 
be dropped, and the system will switch to Power Fail Transfer mode. 
8.05 Plane Transfer Button. This is similar in function to the sys- 
tem reset button. When pressed,. the system will cease all 
activity and run a checksum test on the software; if this fails, the 
software will be reloaded from the floppy diskette. Otherwise, the 
system will reinitialize. Note that this should never be done while the 
SX-200’ DIGITAL PABX is handling traffic, as all calls will immediately 
be dropped, and the system will switch to Power Fail Transfer mode. 
8.06 Seven-Segment Display Status Indicators. The Main Control 
card status indicators consist of two -/-segment display LEDs, 
arranged vertically, as shown in Figure 8-l. The top display LED is the 
most significant while the lower display LED is the .least significant. 
The function of the Main Control card status indicators depends upon 
the software currently being executed. At system initialization, they 
indicate the status of the Main Control card tests; this is summarized 
in Table 8-l. When the maintenance person is accessing the test line 
facility, the status indicators are totally dedicated to this function; refer 
to Part 7 of this Section for further details on the test line. Problems 
with the system floppy disk drive will be indicated by error codes on 
the displays (see Table 8-2). Finally, the status indicators will show the 
physical location of the most recent card to have a problem entered 
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							General Maintenance Information 
MAIN CONTRC CARD 
C---EXTRACTOR 
FSEGMENl 
DISPLAYS 
BAY CONTROL 
CARD MASTER 
RESET 
PERIPHERAL 
c%~!EoL 
Figure 8-9 Control Card Front Panels 
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							General Maintenance Information 
into the Maintenance Log. The card’s bay number (top) and slot num- 
ber (bottom) wiil be displayed. During normal operation when no ap- 
plications are using the status indicators, a pair of hori.zontal dashes 
will be displayed. 
TABLE 8-l 
MAIN CONTROL CARD TEST STATUS CODES 
Test Name Test Code Error Code 
Bus Error Vector/Stack Test 0 
EO 
1 Processor Viability Test 
I 1 I El I 
PROM Checksum Test 2 E2 
RAM Load Checksum Test 3 E3 
Limited RAM Test 4 E4 
DMA Controller Test 5 E5 
1 RAM Chip Select Test 
1 6 / E6 1 
1 RAM Data Bit Indep. Test 
I 7 I E7 I 
riemory Address Test 
1 8 1 133 1 
Memory Space Test 9 E9 
* Booting System Software b OR b. Eb or Eb. 
*Note that, upon test failure, test error codes Will be flashed for 1 
second, after which testing will begin again from test # 1. 
8.07 Reset Alarm LED. This indicator will light when the system has 
been reset. 
8.08 Active LED. This green LED serves as an indication of the 
health of the system. A steady 1 second pulse cycle indicates 
that the system is up and running. Should the LED remain constantly 
on or off, this indicates that the system is not running; in this case 
Section MlTL9108-093-350-NA, Troubleshooting should be consulted. 
8.09 Alarm Status LEDs. The bottom three LEDs on the main con- 
trol card are the alarm status LEDs; only one of these LEDs may 
be on at any one time. They indicate the overall system alarm level: 
one of: MINOR ALARM, MAJOR ALARM or no alarm. If none of the 
alarm status LEDs are on, the system should be in perfect working 
order. Refer to Part 4 of this Section for further information on alarms. 
Bay Control Card 
8.10 The Bay Control card has three status LEDs, labelled TX, RX and 
ALARM. The TX and RX LEDs indicate communication (transmit 
and receive) with the Main Control card. The ALARM LED has two 
functions. A flashing ALARM LED indicates a failure on the Bay Control 
card. A permanently lit ALARM LED indicates that the Bay Control card 
is waiting for, or has lost communication with the Main Control card. 
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							General Maintenance Information 
See Table 8-3 for a summary of the Bay Control card status LED 
states. 
Peripheral Control Card 
8.11 The Peripheral Control card (PCC) has two status LEDs, labelled 
“1” and “Z”, located on the card’s front panel (see Figure 8-l). 
These LEDs are used along with the Scanner card’s 7-segment display 
status indicators during the Peripm-ral Control card initialization se- 
quence. Table 8-3 summarizes the functions of the PCC LEDs. 
Digital Interface Card 
8.12 The Digital Interface Card (DIC) has two status LEDs, labelled 
“TX” and “RX”, located on the card’s front panel (see Figure 
8-l). These LEDs have two different functions During DIC initialization, 
they are used along with the Scanner card’s -/-segment display status 
indicators to display initialization status. Table 8-4 summarizes the LED 
information for this case. During peripheral bay loading, they are used 
to indicate message traffic between the main control and the periph- 
eral control. In this case, the TX LED indicates message information is 
being transmitted from the peripheral control to the main control. 
Similarly, the RX LED indicates message information being transmitted 
from the main control to the peripheral control. 
TABLE 8-2 
DISKETTE ERROR CODES 
I--- 3E 
I E.3 
I Disk is unusable. 
I 
4E E.4 
5E E.5 Disk is unusable. Updates are still pending. 
The current diskette cannot be written to; there is a 
write protect sticker on it. 
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							General Maintenance Information 
TABLE 8-3 
BAY CONTROL CARD STATUS LEDS 
TX LED RX LED 
on on Alarm LED Meaning 
on Bay Control card is either waiting for, or has lost 
communication with the Main Control card. If 
this state persists for more that a few seconds, 
there is no communication. 
flashing flashing on Bay Control card is being downloaded by the 
Main Control card. 
flashing flashing 
Off Bay Control card is up and running and commu- 
nicating to the Main Control card. 
Off Off Off 
flashing This is the normal operating condition of the 
Bay Control card. 
There is a failure on the Bay Control card. 
. 
TABLE 8-4 
PERIPHERAL CONTROL CARD TEST STATUS INDICATORS 
r Test Name Test Pass 
PCC LEDs I Scanner LEDs Test Fail 
PCC LEDs Scanner LEDs 
** Download done 
* The “PCC RAM Test” is run only if this test fails; he.nce there is no “test fail” error code. 
** A0 indicates that Bay 3 is ready for downloading; AA indicates that Bays 4 and 5 are ready. 
Similarly, b3 indicates Bay 3 has finished loading; b4 indicates Bays 4 and 5 have finished. 
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							General Maintenance information 
TABLE 8-5 
DIGITAL lNTERFACE CARD TEST STATUS INDICATORS 
* Due to the speed of the testing, if all tests pass;-the scanner card LEDs will appear to display 
“bb” immediately. 
W Indeterminate 
Scanner Card 
8.13 On the Scanner card, there are a pair of 7-segment display 
status indicators, a pushbutton, and eight DIP switches. All of 
these controls and indicators are labelled clearly on the Scanner card’s 
front panel (see Figure 8-I). The functions of the controls and indica- 
tors are described in the following paragraphs. 
8.14 Master Reset Pushbutton. Pressing the master reset push- 
button on the Bay 3 scanner card will cause all activity in Bay 3 
to cease, all PROM-based tests on the Bay 3 peripheral control com- 
plex to run, and the peripheral software to be reloaded into Bay 3. 
Pressing the master reset pushbutton on the Bay 4 scanner card wili 
cause all activity in Bays 4 and 5 to cease, all PROM-based tests on 
the Bay 4 and 5 control cards to run, and the peripheral software to be 
reloaded into Bay 4. Note that this should never be done while the 
SX-200@ DIGITAL PABX is handling traffic, as all calls in the affected 
bay(s) will immediately be dropped. 
8.15 Seven-Segment Display Status Indicators. The Scanner card 
7-segment display LEDs, arranged vertically, as shown in Figure 
8-1. The top display LED is the most significant while the lower display 
LED is the least significant. The function of the displays depends upon 
the software currently being executed. At system initialization, they 
indicate the status of the Peripheral Control card and Digital Interface 
Card PROM-based tests; these are summarized in Tables 8-4 and 8-5. 
8.16 DIP Switches. These have no functionality. 
Page 8-6