User Manual

34
Hardware
Multi 4/8 V1.7
Multi-4/8 USB V1.7
Since Multi-USB V1.7 is used USB 2.0 Controller, the performance is higher than ever.
Throughput is increased about 30% than ever, you’ll use more smoothly.
Also, It can supply +5V when the device needs. This feature is useful when small devices such
as cash box, bar-code reader and printer are connected to PC POS system. +5V can be
supplied even when Multi-4/8 USB don‟t use external adapter. This supply voltage is supplied
through 9th pin of DB9 connector.
1. RS232 Model
- DB9 Female Pin Assignment
- External Voltage Supply Jumper
Multi-4U RS232 V1.7