Datasheet
www.moxa.com
2
Standards IEEE 802.3 for 10BaseT
IEEE 802.3u for 100BaseT(X) and 100BaseFX
IEEE 802.3x for flow control
Optical Fiber
100BaseFX
Multi-Mode
Single-Mode
(40 km)
Single-Mode
(80 km)
Fiber Cable Type OM1
50/125 µm
G.652 G.652
800 MHz x km
Typical Distance 4 km 5 km 40 km 80 km
Wave-
length
Typical (nm) 1300 1310 1550
TX Range (nm) 1260 to 1360 1280 to 1340 1530 to 1570
RX Range (nm) 1100 to 1600 1100 to 1600 1100 to 1600
Optical
Power
TX Range (dBm) -10 to -20 0 to -5 0 to -5
RX Range (dBm) -3 to -32 -3 to -34 -3 to -34
Link Budget (dB) 12 29 29
Dispersion Penalty (dB) 3 1 1
Note: When connecting a single-mode fiber transceiver, we recommend using an
attenuator to prevent damage caused by excessive optical power.
Note: Compute the “typical distance” of a specific fiber transceiver as follows: Link
budget (dB) > dispersion penalty (dB) + total link loss (dB).
DIP Switch Configuration
Ethernet Interface Port break alarm
Switch Properties
MAC Table Size 2 kbits
Packet Buffer Size 768 K
Processing Type Store and Forward
Power Parameters
Input Current EDS-308/308-T: 0.07 A @ 24 VDC
EDS-308-M-SC/S-SC Series, 308-S-SC-80: 0.12 A @ 24 VDC
EDS-308-MM-SC/MM-ST/SS-SC Series, 308-SS-SC-80: 0.15 A @ 24 VDC
Connection 1 removable 6-contact terminal block(s)
Operating Voltage 9.6 to 60 VDC
Input Voltage Redundant dual inputs, 12/24/48 VDC
Reverse Polarity Protection Supported
Overload Current Protection Supported
Physical Characteristics
Housing Metal
IP Rating IP30
Dimensions 53.6 x 135 x 105 mm (2.11 x 5.31 x 4.13 in)