Specifications for 640-L3 PR Monitoring and Control System
| Mounting | 23" relay rack or wall mount |
| Case dimensions | 17.5" high, 23" wide, 11" deep |
| Weight | Approximately 55 lb. |
| Input power | -48 to -56 vdc, 3A uninterrupted. UL recognized. |
| Power wiring | Distances 100 ft. or less: 14 AWG. Distances greater than 100 ft. and less than 200 ft.: 12 AWG. |
| Environmental | Operating temperature: 32° to 122°F (0° to 50°C) Relative humidity: 10% @ 36°F to 80% @ 110°F |
| Communication | Bell 212A/CCITT. Modem 300, 1200 or 2400 baud. Local RS232: 300 to 9600 baud. VT100 emulation for 80 and 132 character terminals. Meets requirements of FCC Part 15, Subpart J, class A for industrial use computing device. |
| Processor | NEC V25 at 8 MHz. 384K RAM expandable to 1M. 512K ROM expandable to 1M. Fully compatible with existing 640-L2 cards. |
| Multi-tasking operating system | Ability to handle up to 3 users. Simultaneous Automatic and Manual scan. Dial-in and LOGON during scan. Scan time 2.0 seconds per device. |
| Fail safe | Remote reset capability. Watchdog circuitry for auto reset. Modem fail testing and resetting. Board failure testing and reporting. Memory corrupt reset. Central Office alarm contacts for system fail. |
| Printer & display compatibility | Compatible with older Teleprinter standards. Standard CRT including PC display. VT 100 emulation. |
| Enhanced capabilities | Up to 1800 points monitored or controlled. Single software package supports all options. Battery backup for program data. Time and date stamp on alarms. Unlimited simultaneous alarms and restorals. Pager call out in the event of an alarm. 50 character addresses. 6 character circuit description (unlimited combinations). 6 automatic scheduled reports. 10 phone number definition. 8 device priority levels. 4 user programmable passwords. Programmable Zero flow alarm suppression. |
| Alarm capabilities | Alarm qualifier times for all points. Alarm range: 0 to 9.5 PSIG, Short, Open, No Good (N.G.), Busy, etc. Trend Alarm Range: 1.0 PSIG or two increments, Increasing or Decreasing. Threshold resolution: 0.5 PSIG. |
| Improved, comprehensive reports | Alarm and error status for each monitoring board. New Extended, Compact, L3, L2 or PM report format. Easily readable error messages. Comprehensive on-line help commands. |
| Decentralized administration | Automatic data acquisition from any location. Data processed into clear, descriptive information eliminating the need for cross reference or look-up table. Pre-programmed trouble summary reports for first level supervision and higher level management requirements. |
| Centralized administration | Data may be processed from a central location and automatically transmitted to any location such as: - maintenance garages; - district maintenance centers; - area maintenance centers; - area test centers; - at various levels of supervision and/or management. |