4. DISPLAYS 4.01 The hardware and software conditions of the system, as well as maintenance action and responses, are displayed at the MAP. Information is presented in the form of a basic display or a MAPCI display. BASIC DISPLAY 4.02 The character string CI: and the character > are displayed on two lines in the upper left hand corner of an otherwise blank screen. They indicate MAP readiness to interact with the command interpreter (CI) in analyzing data that is entered and invoking valid commands. This basic display operates in the scroll mode. 4.03 The scroll mode advances each entered line to the next one higher when an additional line is entered. When all lines in the display have input entered, additional lines entered cause the uppermost line to be lost to the display. The basic display is used when non-menu commands are applied, and when output dis- play areas are not large enough for all information reported. For example, activities involving Table Editor or Operational Measurements require the greater space allowed by the basic dis- play. MAPCI DISPLAY 4.04 The MAPCI display, Figure 5 on page 17, the highest level of MAP display, is accessed from the basic display level. It shows the menu of commands that are available to access the maintenance and administration systems. They are: QUIT (retreat to previous level) MTC Maintenance System SASelect Service Analysis NWM Network Management CPSys Call Processing System IBNMEAS IBN Measurements 4.05 The MAPCI NODISP option provides access to MAPCI levels without the MAP display. This command only provides out- put from the Command Interpreter (CI) while the following areas are not displayed: the control position, the system status area, the command menu display area, userid, and time. Page 16 PRACTICE 297-1001-520 RELEASE: 02.03 旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� � � � � � 0 Quit � � 2 MTC � � 3 SASelect � � 4 NWM � � 5 CPSys � � 6 IBNMEAS � � 7 � � 8 � � 9 � � 10 � � 11 � � 12 � � 13 � � 14 � � 15 � � 16 � � 17 � � 18 � � � � User ID � � Time hhmm > � 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� Fig. 5 - MMI Display at MAPCI Level. MAP FORMAT 4.06 The MAP screen area available for system output consists of 24 lines of 80 characters (Figure 6 on page 19). In the maintenance mode, the screen is divided into a number of areas which are used for displaying the following types of infor- mation: o System Status Area (3 lines of 80 characters) displays the alarm and/or operational status of the system, with immediate automatic updating of the display to show current status of the system. o Work Area (variable number of lines of 68 characters) dis- plays: � descending levels of subsystem status with automatic updating to show current status. � working data such as voltage and frequency levels that are applied and measured. Page 17 PRACTICE 297-1001-520 RELEASE: 02.03 o Command Menu Display Area (19 lines of 12 characters) dis- plays the functions which are available to the user. o Command Interpreter Output Area (variable number of lines of 68 characters) displays: � output of system reports (including error, action taken, and diagnostic messages) upon user request, � system responses to commands entered by the user. o Input Echo Area (1 line of 68 characters) provides an echoed statement of the most recent commands that were typed in. o User Identification and Time Area (2 lines of 12 characters) provides the identification of the user that is logged into the MAP, and the time of day. 4.07 MAP that are equipped with the "flashing field" feature, flash indicators for items such as alarm status to draw the user's attention. 4.08 There is a total of 20 lines in the Work Area and Command Interpreter Output Area combined. The proportion of lines allocated to each area varies according to the command that is entered. 4.09 If the MAP can display characters at either high or low intensity, and has inverse video capability (black charac- ters on a white background), the Menu Area is displayed in inverse video, while row and column headers are displayed at low intensity. Other types of MAP separate the Menu Area from the Work area and Command Interpreter Output Area displays by means of a column of diagonal lines (/) to the right of the Menu Area. Page 18 PRACTICE 297-1001-520 RELEASE: 02.03 旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� � � � System Status Area � � � 쳐컴컴컴컴컴컫컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� � � � � � � � � � � � � � � � � � Work Area � � Command � � � � � � Menu � � � � � � Display � � � � � � Area � � � � Command Interpreter (CI) Output Area � � � � � � � � � � 쳐컴컴컴컴컴캑 � � User ID � � 쳐컴컴컴컴컴컵컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� � Time hhmm � Input Echo Area � 읕컴컴컴컴컴컨컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� Fig. 6 - MAPCI Display Areas. ALARM INDICATOR DISPLAYS 4.10 Audible and visible alarms are provided in the system to alert maintenance personnel of trouble conditions. Faults are classified according to the severity of the problem, and assigned to one of the critical, major, or minor alarm classes. The promptness of maintenance action for each alarm class, is determined by the operating company. 4.11 Whenever a failure is detected in the system, the system status information displayed on the screen is updated to indicate the fault. The most severe alarm status for each sub- system is displayed below the subsystem header in the system sta- tus area using codes as follows: Page 19 PRACTICE 297-1001-520 RELEASE: 02.03 CODE ALARM CLASS *C* Critical Alarm M Major Alarm (blank) Minor Alarm if a system fault is displayed; no alarm otherwise. 4.12 The alarm code flashes when a failure is detected (if the flashing field feature is available on the MAP). It stops flashing if the silence (SIL) command is entered, or if the alarm reset key on the alarm control and display panel (NT0X63AA) is operated, and remains displayed in the steady state until the cause of the alarm has been removed. 4.13 If an additional alarm is reported to the MAP, the appro- priate alarm class code flashes for that fault. Again, when the SIL command is entered the flashing is stopped. HIERARCHY OF STATE AND AVAILABILITY DISPLAY 4.14 For any given node or link it is possible to have both a state and an availability indicator set to indicate a busy condition. The interpretation of the most common indicator dis- plays or their equivalent (see Paragraph 2.11 on page 11) is shown in Table A on page 21 and Table B on page 22 . 4.15 For example, a P-side busy condition on a link is dis- played on the screen as a P in the Work Area. A subse- quent maintenance action making the link manual busy, changes the P indicator on the screen to M. Page 20 PRACTICE 297-1001-520 RELEASE: 02.03 TABLE A NODE MAINTENANCE INDICATORS AND MEANINGS DISPLAY INDICATES MEANS, C-SIDE NOTES - unequipped not applicable O offline - normal - busy M manual busy - normal 3 - busy S system busy - normal 2 - busy C normal - busy 2,3 o normal - normal Notes: 1. The highest order in the hierarchy starts at the top (-), and only the highest order character is displayed. 2. When a node and all the links connected to its C-Side are system busy, the maintenance indicator S is displayed briefly to indicate that the node is system busy. The display chang- es to C, for C-Side busy, to indicate that the node is inac- cessible. 3. If all message links from the C-Side of a node go system busy, then the node goes system busy, and the links go P-Side busy. Page 21 PRACTICE 297-1001-520 RELEASE: 02.03 TABLE B LINK MAINTENANCE INDICATORS AND MEANINGS DISPLAY INDICATES C-SIDE P-SIDE NOTE - unequipped not applicable not applicable O offline - normal - normal - busy - normal - normal - busy - busy - busy M manual busy - normal - normal - busy - normal - normal - busy - busy - busy S System busy - normal - normal - busy - normal - normal - busy * C normal - busy - normal - busy - busy P normal - normal - busy * o normal - normal - normal Note: When a link becomes system busy the maintenance indicator S ---- is briefly displayed. The display changes to P, for P-Side busy, to indicate that the link is inaccessible from its P-Side. MAINTENANCE (MTC) DISPLAY 4.16 The highest level of maintenance system MAP display is accessed by entering the command MTC while in the MAPCI level shown in Figure 5 on page 17 4.17 The MTC level display comprises: o three horizontal lines of system status information o a vertical menu of the maintenance subsystems MMI accessible from the MTC level 4.18 The first line of the status display and menu numbers 9 through 17 consist of headers for each of the maintenance subsystems. The headers shown in the display depend on the con- figuration of the DMS switch (see Figure 7 on page 24 and Figure 8 on page 25 ). 4.19 The maintenance subsystem headers comprise: Page 22 PRACTICE 297-1001-520 RELEASE: 02.03 CC Central Control(Central Control configuration only) CM Computing Module (Message Switch configuration only) CMC Central Message Controller(Central Control con- figuration only) MS Message Switch (Message Switch configuration only) IOD Input/Output Device Net Network PM Peripheral Modules CCS Common Channel Signalling Lns Subscriber Lines Trks Trunks Ext External Alarms 4.20 Menu items 5 and 6 are do not represent maintenance sub- systems but indicate special testing and status tools. For this reason, they do not appear across the top of the screen. 4.21 Status information for each maintenance subsystem is shown on the second line of the MTC display below the appropri- ate header. The information displayed concerns the most severe condition in the subsystem at the time. Normal status is indi- cated by a dot (o), while faults are indicated by letter or num- ber codes established for each subsystem. The third line contains the alarm status information as described in Alarm Indi- cator Displays on page 19. 4.22 The format and meaning of fault indicators and alarm sta- tus codes is detailed for each subsystem in practices describing Man Machine Interfaces. They are generally numbered in the range 297-xxxx-511 and up. 4.23 When maintenance subsystem menu commands are entered to test or locate subsystem elements, location information is displayed in the CI area in a uniform format for all elements. See 297-1001-120. Page 23 PRACTICE 297-1001-520 RELEASE: 02.03 旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� � CC CMC IOD Net PM CCS Lns Trks Ext � � o o o o o o o o o � � � � MTC � � � � 0 Quit � � 2 Activity � � 3 � � 4 � � 5 BERP � � 6 CPSTATUS � � 7 � � 8 � � 9 CC � � 10 CMC � � 11 IOD � � 12 Net � � 13 PM � � 14 CCS � � 15 Lns � � 16 Trks � � 17 Ext � � 18 � � � � User ID � � Time hhmm > � 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� Fig. 7 - MMI Display At MTC Level (for configuration with a Central Control) Page 24 PRACTICE 297-1001-520 RELEASE: 02.03 旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� � CM MS IOD Net PM CCS Lns Trks Ext � � o o o o o o o o o � � � � MTC � � � � 0 Quit � � 2 Activity � � 3 � � 4 � � 5 BERP � � 6 CPSTATUS � � 7 � � 8 � � 9 CM � � 10 MS � � 11 IOD � � 12 Net � � 13 PM � � 14 CCS � � 15 Lns � � 16 Trks � � 17 Ext � � 18 � � � � User ID � � Time hhmm > � 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� Fig. 8 - MMI Display At MTC Level (for configuration with a Message Switch) Page 25 PRACTICE 297-1001-520 RELEASE: 02.03