B&B Electronics EKI-2541S_SI - Manual - Manual (Page 25)

17 Chapter2
2.5 Network Connection
• Twisted-pair segment can use unshielded twisted pair (UTP) or shielded twisted pair
(STP) cabling. The cable must comply with the IEEE 802.3u 100Base-TX standard
for Category 5. The cable between the converter and the link partner (switch, hub,
workstation, etc.) must be less than 100 meters (328 ft.) long.
• Fiber segment using single-mode connector type must use 9/125µm single-mode
cable. You can connect two devices in the distance of 30 kilometers in full-duplex
operation. For half-duplex operation, the recommended maximum distance is 412
meters (1,352 ft.).
• Fiber segment using multi-mode connector type must use 50 or 62.5/125μm multi-
mode fiber cable. You can connect two devices up to a 2-kilometer (6,562 ft.)
distance.
2.6 Power Connection
The EKI-2541M/2541S supports dual +12 ~ 48 V
DC
power inputs and power-fail relay
output.
Figure 2.8: Pin Assignment of the Power Connector
You can connect an alarm indicator, buzzer or other signaling equipment through the
relay output. The relay opens if power input 1 or 2 fails ( “Open” means if you connect
relay output with an LED, the light would be off).