Can the main control board be installed in other slots on the U1900 series unified gateway

A main control board can be installed in either of the two slots reserved for the main control board. An LPU can be installed in any slot reserved for LPUs. However, the main control board cannot be installed in the slot reserved for LPU, and the LPU cannot be installed in the slot reserved for the main control board. For details about slot distribution of LPUs and MPUs, see How Are Slots of an S7703 Chassis Distributed?, How Are Slots of an S7706 Chassis Distributed?, How Are Slots of an S7712 Chassis Distributed?, How Are Slots of an S9703 Chassis Distributed?, How Are Slots of an S9706 Chassis Distributed?, and How Are Slots of an S9712 Chassis Distributed?.

During the device restart, enter R when the system prompts you to press R to restore the default password. At the prompt "[.Conform to restore password.](Y/N):>", enter Y. The following information is displayed: Success to restore default password! Success to save default password! Then, you can use the default password to log in to the gateway.

Run the config system date command to change the time in YYYY-MM-DD format.

Different types of equipment use different boards： - U1960/U1981/U1911contain following boards： SCU/SCUB、MTUA/MTUB、BTU、ASI、OSU。 - U1980 board types：SMCU、MRS、DTU-4、DTU-8。 - U1910/U1930 board types：CVPs main control boards、ASI、OSU。 - SoftCo 9500 boards containss main control boards（IP PBX-SMCU）、media resource board（SC1-MRS）、Digital trunk interfa（SC1-DTU-4、SC1-DTU-8）。 - SoftCo 7500 boards containss main control boards（SCU）、media trunk resource board（MTU）、BRI trunk interfa（BTU）、Analog Subscriber Interface （ASI）and OSU（FXO/FXS Interface). - SoftCo 5500 boards containss main control boards（CVP）、Analog Subscriber Interface （ASI）and OSU（FXO/FXS Interface）。 - SoftCo 3500 boards containss main control boards（CVP）、Analog Subscriber Interface （ASI）and OSU（FXO/FXS Interface）。

For detailed deployment and upgrade methods, see the upgrade guide of the U1900 series unified gateway: