On Friday, October 28, NTT East Knagtawa conducted  “communications recovery drill” using disaster response equipment at  NTT Kozaku Building (Yokohama City).

The training assumes that an earthquake with a seismic intensity of upper 6 occurs and damages at  Yokohama. Using  Kozaku Building as a frontline base for recovery, they simulated the installation of disaster countermeasure equipment in the affected area.
NTT docomo and NTT Anode Energy participated,too.

As a temporary public telephone installation training, the 11P-150M portable digital radio system was used and restored with the new synchronous digital interface (STM). In addition, the UMC1000J was used to temporarily restore various services (telephone, Internet, etc.) in areas where communication cables were cut and communication could not be secured.

In addition, using the TZ-403D type subscriber digital radio equipment, multiple radio terminal stations several tens of kilometers away from the radio base station in  NTT station building can be used to transmit voice and IP systems at a maximum speed of 1.5 megabits/second. provided the service. There are two wireless base stations serving as master stations in Kanagawa Prefecture.

Training was also conducted to secure communications with the PUE (Portable Satellite Communication System).
Command vehicle training was also conducted. A command car is a vehicle that is dispatched to a disaster area for on-site command in the event of a disaster. The Kanagawa Division has two command vehicles.
In recent years, a command car was dispatched to build Wi-Fi on the Diamond Princess cruise ship, where an outbreak of Covid-19 occurred, when it was docked at the port of Yokohama.