Install Guide
Model: MIL-1225LS Media Converter
3
5. Check the
SMSD
LED and the
MMSD
LED for proper status. This depends on the
status of the devices connected to the unit. They indicate a signal is being
received on those ports.
Contact Digi’s technical support if you experience difficulties installing the MIL-
1225LS.
T h e o r y o f O p e r a t i o n
The MIL-1225LS is a single-mode to multi-mode fiber converter for gigabit
Ethernet networks. When the device receives an optical input signal from one
port, it will convert it into an electrical signal. The device will then convert the
electrical signal back to an optical signal suitable for transmission over the other
port.
Figure 1.MIL-1225LS Connections
I n d i c a t o rs
There are 4 LED indicators on the MIL-1225LS:
•
PWR1
(Power One): This LED illuminates when the MIL-1225LS is receiving
power on the primary power adapter.
•
PWR2
(Power Two): This LED illuminates when the MIL-1225LS is receiving
power on the (optional) back-up power adapter.
•
SMSD
(Single-Mode Signal Detect): This LED illuminates when MIL-1225LS
receives a valid link or data traffic signal from the device connected to the
SMF
Port
•
MMSD
(Multi-Mode Signal Detect): This LED illuminates when MIL-1225LS
receives a valid link or data traffic signal from the device connected to the
MMF
Port
Single-mode
device
SMF Port
MMF Port
PWR1
SMSD
MMSD
MIL•1225LS
Gigabit Ethernet
1000BASE-LX to 1000BASE-SX
Single-mode to Multi-mode
Media Converter
PWR2
TX
RX
TX
RX
PWR2
5 VDC
1.5 A
PWR1
5 VDC
1.5 A
Multi-mode
device
