The DLM205 combines a 9 port non-blocking Ethernet switch and aggregator with DL4000 chassis management capabilities.

The innovative design of the DLM205 enables users to manage and monitor DL4000 chassis as well as aggregate 9 channels, 5 external and 4 internal, of 10/100/1000 Ethernet traffic for transport across electrical or optical networks, all in a low cost, single slot DigiLink module. The module is fully non-blocking with a total capacity of 18 Gigabits of traffic plus chassis management and each port independently supports 10/100/1000 Ethernet. The four internal ports can be linked to other modules in a DigiLink chassis to provide internal Ethernet connectivity eliminating the need of external cabling.

Unlike more complicated designs that require dedicated trunking modules and switching matrixes, the DLM205 is a simple Gig-E aggregator compatible with all DigiLink chassis. When used in a DL4000 chassis an additional channel is enabled that includes capabilities to manage, monitor, and configure a chassis via DigiLink Manager HTTP browser based EMS or SNMP. The DLM205 provides a simple, reliable, and low cost solution for transporting video centric traffic and chassis management across Ethernet networks.


Operating Temperature
0 to 50°C
Ambient storage temperature
-40 to 80°C
Relative humidity
10 to 95% (non-condensing)
Power dissipation
< 8 Watts

0.8” x 5” x 10.8”
(1 slot in DigiLink chassis)
<2 pounds, (1kg)

External Electrical
Rear (3) RJ-45
External SFP
2 (Optical or RJ-45)

4 to other modules in DigiLink chassis

DL4000 Chasssis Management

Data Rates
10/100/1000 Ethernet
Regulatory Conformance

NEBS Level 3, CSA 60950, EN60950, EN55022 FCC Part 15 (Class A),

Functions:Monitor and manage DL4000 chassisAggregate up to nine 10/100/1000 Ethernet linksNon-blocking 18 Gigabit of switching capacityProvides optical or electrical transport of

  • 10Base-T
  • 100Base-T
  • 1000Base-T
  • Ethernet Standard

Features: In-band management of DL4000 chassisSupports all types of Ethernet traffic

  • 10/100/1000 auto negotiate
  • Auto MDI/MDIX
  • Auto full-duplex and half-duplex
  • VLAN capabilities

Externally accessible SFP transceiver optics

  • Optical budget to 33dB
  • WDM (1310nm, 1550nm)
  • CWDM ITU G.694.2 (Channels 27-61)
  • DWDM ITU G.694.1 (Channels 21-60)

Front and rear panel status LEDs

  • Major/minor alarms
  • Link status
  • Activity

Statistics per RFC 2819 Standard Simple and rugged design

  • Plug and play design requires no pre-deployment configuration
  • Monitor,manage, and review statistics using DigiLink-Manager or SNMPv2
  • NEBS Level 3 Certified ensures reliable operation in harsh environments

Quick Start Guide