The 1-Wire port is based around a DS2482-800 &DS2482-100 I2C to 1-Wire bridge device.

The DS2482-800 provides bi-directional protocol conversion between the I2C port on the Raspberry Pi and

any attached 1-Wire® slave devices. An ESD Protection Diode is used to

protect the Board and Raspberry Pi from electrostatic spikes on the 1-Wire port.

Connections to the 1-Wire port can be made through pin on the PCB.

1-Wire 2482-100  1 channel WITH 1 ESD protection diode     DS2482-100 Datasheet

1 Wire  2482-800 8 channel  with 8 ESD protection diode      DS2482-800 Datasheet

with DHT22(AM2303) Digital Temperature Humidity Sensor socket))

with DS18B20 Temperature Sensor

18  -- > DS2482-100     1C --> DS2482-800

It appears that OWServer has found 9 1-wire busses,
DS2482-100 is bus.0      DS2482-800 is bus.1 .. bus 8

 i2c addresses of each bus.

with DHT22 (AM2302) Digital Temperature Humidity Sensor socket