consumption machine, recharging machine and issuing machine are generally called window machine. Products models with different using purposes are dependent on different machine gauges and software setting. The machine gauge of issuing machine is “0”. Generally, there is only one issuing machine in a whole set of system. The machine gauges of recharging machine and vending machine are from “1” to “239”. Recharging machine and selling machine can be several, but the total number of both machine are only 239 in a set of standard system. The number can be expanded to 23900 sets in reinforced system and network system. It is decided by managing software that whether a set of window machine is recharging machine or selling machine.

Window machine can be divided into hanging type and horizontal type in respect of external appearance.

Models of hanging machines：
New Hanging Read-only Radio Frequency Window Machine (White ) 　　　　　PD601/1B
New Hanging Read-only Radio Frequency Window Machine (Gray) 　　　　　　PD601/1H
New Hanging Read-write Radio Frequency Window Machine (White) 　　　　　PD601/2B　
New Hanging Read-write Radio Frequency Window Machine (Gray)　　　　　　PD601/2H　
Hanging Read-write/Read-only Radio Frequency Window Machine (White)　 　PD661/12B　
Hanging Read-write/Read-only Radio Frequency Window Machine (Gray)　　　PD661/12H......

Models of horizontal machines:
New Horizontal Read-only Radio Frequency Window Machine 　　　　　　　　 　PD601/1　　
New Horizontal Read-write Radio Frequency Window Machine　　 　　　　　 　 PD601/2
New Horizontal Read-only Radio Frequency Window Machine (HID head)　　　 PD601/4......