Datasheet
4/8 Fast Ethernet TDM -
LambdaDriver® Module (EM2009-FXM/FTXM)
Features
4 or 8 SFP based 100BASE-FX ports
4 or 8 copper 10BASE-T or 100BASE-TX ports
IEEE 802.3 compliant
Auto MDI/MDIX crossover capability.
Supports both auto-negotiation systems and legacy
systems without auto-negotiation capability.
Trunk port data rate 2.5Gbps
Loopback on every port
Performance monitoring
Link Integrity Notification
Support of local/remote loopback tests per port
SFP Digital Diagnostics monitoring as per SFF-8472
Front panel status LEDs
SFP digital diagnostics as per SFF-8472
Applications
Fully separated Ethernet services aggregation
Fiber bottleneck relief - 8 times more capacity
over the same fiber
Private LAN’s aggregation over one wavelength
in MAN WDM networks
EM2009-FXM/FTXM
Overview
The LambdaDriver
®
EM2009-FXM/ EM2009-FTXM modules use an
advanced Time Division Multiplexing (TDM) technology for their Fast
Ethernet ports, which can interconnect 10 Mbps and 100 Mbps IEEE
802.3 standard networks over a single Full-Duplex fiberoptic trunk.
Trunk lengths can range from a couple of kilometers to hundreds of
kilometers. Typical applications include:
1) Point-to-point interconnection of up to 8 LANs, one per port
and fully isolated from one another (unlike with a switching
technology), over one or two fibers.
2) CWDM/DWDM Ring interconnection using up to 8 FE channels/
services per wavelength while allowing the coexistence of
additional services on different wavelengths.
Four 4-port models and four 8-port models are currently available:
Each model is identified by two options for the access ports (i.e.,
SFP or RJ45) and two options for the trunk ports (i.e., SFP or fixed
transceiver).
A unique feature enables the auto-negotiation function to be
applicable across the whole trunk, not just locally. This means that
in case a 10 Mbps LAN is connected on one side of the link and
a100 Mbps LAN is connected on the other side of the link, the auto
negotiation will work over the whole link to reduce the 100 Mbps
speed to 10 Mbps speed on the appropriate side.
SFP-based ports support any Fast Ethernet SFP.
The 4-port models occupy one slot space. The 8-port models occupy
two slot spaces.
The aggregate trunk speed is 2.5 Gbps (even in the 4-port models) so
that these modules can use regular OC48 SFPs, providing distances
of up to 80 km without power or dispersion compensation. They can
also use CWDM/DWDM SFPs to allow higher service aggregation over
a single fiber or MMX SFP’s for a transport distance of up to 2 km over
Multimode fibers.
For distances greater than 80 km, models with a fixed trunk port can
be used (instead of SFP based trunk ports) to support distances of up
to 400 km (600 km optional) without the need for DCM’s (Dispersion
Compensation Modules).
�½�½�½�½
�½�½�½�½�½�½ �½�½�½�½�½�½�½�½
�½�½�½
�½�½
�½�½�½�½�½�½
�½�½�½�½�½�½�½�½
�½�½�½�½�½
�½�½�½�½�½�½
Not sure what solution best fits your needs? Visit www.mrv.com or e-mail us at sales@mrv.com
MRV [ MRV COMMUNICATIONS, INC. ]
