Solvline USB Multiport - Manual (Page 25)

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Hardware Multi-4/8 Under V1.5
Multi-4/8 USB under V1.5
Multi-4/8 USB under V1.5 can work with USB power only, so does not need external adapter. It
can supply +5V or +12V 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 or +12V
adapter do n‟t affect the operation of USB MultiPort because this part is separated from serial
communication part. This voltage is supplied through 9th pin of DB9 connector.
1. RS232 Model
- DB9 Female Pin Assignment
- External Voltage Supply Jumper
There are jumpers for each port when opening the case. Users can select 1 of 3.
 RI: Use 9th pin of DB9 connector as RI signal (Default)
 5V: Use 9th pin of DB9 connector as +5V supply (needs adapter)
 12V: Use 9th pin of DB9 connector as +12 supply (needs adapter)