Viola Systems ESERV-10 - Leds; Power Supply Connector; Product Information Label

User’s Manual
LEDs
The ESERV-10 contains two green LEDs, which indicate network activity (ACT) and network
collisions (COL). The table below explains the LED functions:
COL ACT
LEDS
LED LED’s
state
Meaning
Off Normal operation COL
Blinking Network collision*
Steady On Operation voltage connected ACT
Blinking Packets received from the network
*NOTE: In case of a collision ESERV-10 retransmits the packet maximum of 16 times. In a properly
designed network these collisions occur seldom. Frequent collisions indicate that the network
segment is highly loaded.
Power Supply Connector
The ESERV-10 has a 7 – 24 VDC power supply connector shown below:
12
Pin 1 is positive (+)
Pin 2 is negative (–)
Product Information Label
The product information label on the underside of the ESERV-10 contains following info:
1. Product ID
2. Serial Number (SN)
3. Ethernet Address (MAC Address)
V
iola Systems Ltd.
Made in Finland
Exam
p
le of MAC address
ESERV-10
000670000300
SN:
MAC:
ESERV-10 13 Viola Systems Ltd.