User manual

2 Introduction
2.2.2 VScom USB-2COM PRO
Figure 3: VScom USB-2COM PRO
Serial Ports 2
Connectors 2×DB9 male RS232, RS422, RS485 (6.1)
2×Terminal block RS422, RS485 (6.3)
Power Bus powered
FIFO size 128 Bytes Transmit
384 Bytes Receive
LED Power On Top: Red LED
4×Data On Top: Transmit Green, Receive Yellow per port
2×Mode On Top: 3-Color
Table 4: Features of VScom USB-2COM PRO Dual Port
2.2.3 VScom USB-4COM PRO
Figure 4: VScom USB-4COM PRO
Serial Ports 4
Connectors 4×DB9 male RS232, RS422, RS485 (6.1)
Power Self powered Shipped with 5V DC adapter
FIFO size 128 Bytes Transmit
384 Bytes Receive
LED Power On Front: Red LED
8×Data In Block on Front: Transmit Green, Receive Yellow
4×Mode Near Port: 3-Color
Table 5: Features of VScom USB-4COM PRO Quad Port
June 2009 USB-COM PRO User Manual 8