17-32
IM 05P01C31-01EN
17.4.15 Ethernet Communication Interface Wiring
Ethernet
Straight cable
HUB
UT55A UT55A
Crossing cable
*Devices that can be
connected via Ethernet
*Devices that can be
connected via Ethernet
UT55A
Upper side LED (baud rate) Lower side LED (link activity)
Color Amber Color Green
Lit 100Mbps Lit Linked
Unlit 10Mbps Blink Active
Unlit Link failure
CAUTION
BesuretoconnectalightningarresterforEthernet(100BASE-TX/10BASE-T)inan
environmentwhereasurgevoltagemaybeinducedbyalightningdischarge.
17.4 Wiring