User Manual

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Auto MDI/MDI-X Connection
The Auto MDI/MDI-X function allows users to connect the
EDS-405A/408A’s 10/100BaseTX ports to any kind of Ethernet device,
without needing to pay attention to the type of Ethernet cable being used
for the connection. This means that you can use either a straight-through
cable or cross-over cable to connect the EDS-405A/408A to Ethernet
devices.
Specifications
Technology
Standards
IEEE802.3, 802.3u, 802.3x, 802.1D, 802.1Q,
802.1w, 802.1p
Protocols
IGMP V1/V2 device, GMRP, GVRP, SNMPv1/v2c/v3,
DHCP Server/Client, TFTP, SNTP, SMTP, RARP,
RMON, HTTP, Telnet, Syslog, DHCP Option
66/67/82, BootP, LLDP, Modbus TCP, IPv6
MIB
MIB-II, Ethernet-Like MIB, P-BRIDGE MIB, RMON
MIB Group 1, 2, 3, 9, Bridge MIB, RSTP MIB
Forwarding and
Filtering Rate
148810 pps
Processing Type
Store and Forward
Flow Control
IEEE802.3x flow control, back pressure flow control
Interface
RJ45 Ports
10/100BaseT(X) auto negotiation speed, F/H duplex
mode, and auto MDI/MDI-X connection
Fiber Ports
100BaseFX ports (SC/ST connector)
Console
RS-232 (RJ45)
LED Indicators PWR1, PWR2, FAULT, 10/100M (TP port),
100M (Fiber Port), CPLR/TAIL and MSTR/HEAD
Relay Contact
One relay output with current carrying capacity of 1A
@ 24 VDC
DIP Switches
Master, Coupler, Turbo Ring, Reserve
Optical Fiber
100BaseFX
Multi-Mode
Single-Mode
Fiber Cable Type OM1
50/125 µm
G.652
800 MHz*km
Typical Distance
4 km
5 km
40 km
Wave-
length
Typical (nm)
1300
1310
TX Range (nm)
1260 to 1360
1280 to 1340
RX Range (nm)
1100 to 1600
1100 to 1600
Optical
Power
TX Range (dBm)
-10 to -20
0 to -5
RX Range (dBm) -3 to -32 -3 to -34
Link Budget (dB)
12
29
Dispersion Penalty (dB)
3
1
Note: When connecting a single-mode fiber transceiver, we recommend
using an attenuator to prevent damage caused by excessive optical
p ow e r.
Compute the “typical distance” of a specific fiber transceiver as follows:
Link budget (dB) > dispersion penalty (dB) + total link loss (dB).