Home
>
Toshiba
>
Communications System
>
Toshiba Perception Electronic Business Communications System Installation And Maintenance Manual
Toshiba Perception Electronic Business Communications System Installation And Maintenance Manual
Have a look at the manual Toshiba Perception Electronic Business Communications System Installation And Maintenance Manual online for free. It’s possible to download the document as PDF or print. UserManuals.tech offer 566 Toshiba manuals and user’s guides for free. Share the user manual or guide on Facebook, Twitter or Google+.
Fro key on the DPMU * Wait a few seconds for initialize to Depress the LOAD key on the DPMU 0 Wait approx. 30 seconds for re- load to complete. cycle completed?
< all station- / riisl +n”o ‘” -.-. .“..” to-station calls work properly? YES or TIE trunk NO To TTY or MODEM NO YES Fault should have been classified, return to Page 4.
Start here to I-------- c/ea;&;;Ying Go to Page 4 the disk drive r Replace the YES Replace the Replace the DCCU. L-l-- defective unit(s)
From Tag the DPMU as defective - do not reinsert. YES Replace the DPMU and DCCU with a known good pair. To From Depress the LOAD key momentarily. Verify loading is completed. ---- NO Replace the DFRA. NO defective unit(s) 1 -----
e Tag the DPMU and e Tag the DPMU and DCCU as defective, DCCU as defective, Do not reinsert. Do not reinsert. To voltages within Call the Service Center for assistance. YES Tag the defective unit(s) and return for repair.
Fro Start here to clear PO wer faults. Switch main circuit breaker to OFF then back NO e Switch main circuit breaker to OFF. e Depress the circuit breaker(s) 6l~Sl4 that correspond(s) to the LED(s) that is/are off. * Switch main circuit breaker to ON. Replace the power supply. Tag and return it for repair. Switch main circuit breaker to OFF. Open the rear cabinet connection Disconnect the DC power supply cables to JZOI and J202. b If this is a power supply “LED off” fault, depress the circuit breaker(s) (.Sl%Sl4) that correspond(s) to the LED(s) that was/were off. * Switch the main circuit breaker ON. Measure ail DC supply voltages on J201 and J202.
From B2 0 Page 11 power supply. Tag it and return To Disconnect the DFRA power cables (~80/81 and J51). Remove all PCBS. supply “LED off” fault, depress the circuit breaker (S’l& Sl4) -that corres- ponds to the LED(s) that was (were) off. a Switch the main circuit breaker ON. Problem is on the backplane. To clear it, refer to Figure 2 on Page 40. fault cleared? llM’PORTANi7 Make .sure power is off whenever removing/inserting a PCB or connecfor. ;’ LED (si bknb 1’ off or the DC I.---- voltages being out of .specs. ona at a time. e if a power fault occurs. reolace the defective t~nit(s) CB/DFRA also
From fA Measure the ringer voltage at the backplane, between pins 27 and 28 on DPMU. The DFRA or DCCU has a faulty indicator. Replace the defective unit at a convenient time.
From Start here to Go to Page 4 to classify fault. The following instructions will cause all calls in progress to be disconnected and no new calls will be established. - Do not continue while there are calls in progress. * Replace the DTCU, * Verify that the clock LED is flashing.