User's Manual Part 1

The Indoor Unit (IDU) Chapter 1
RADWIN 2000 User Manual Release 2.5.40 1-10
New style IDU-E for both WinLink 1000 and RADWIN 2000
The new style IDU-E is a carrier grade, compact, half 19 inch wide, 1U plastic unit, providing
up to two Ethernet ports and up to two E1/T1 interfaces. It offers Layer 2 support for Ether-
net service and HSS support for collocated links. It is a low cost unit intended for both Access
applications and Enterprise use.
Figure 1-5: New style IDU-E - front view (Note new HSS LED on the left)
The IDU-E rear panel (right to left) has a 25 pin Dry Contact Alarms port. the two (or no)
trunk ports, two LAN ports, an ODU port and finally a 3 pin DC power plug identical to that
used on the IDU-C.
.
Figure 1-6: New style IDU-E: Rear panel
IDU-C
The IDU-C is a carrier-class 19 inch, 1U unit, providing E1/T1 ports, Ethernet ports,
an SFP port, a STANDBY port for MHS control, dry contact alarms and indication
LEDs. It has two DC power feed connectors. An AC to DC converter is available for
powering the IDU-C from an AC source. The IDU-C is designed to be rack mounted.
Four IDU-C products are available in release 2.5.40 with 16, 8 and 4 E1/T1 ports and with
Ethernet only ports.
Figure 1-7: IDU-C, Ethernet only, front panel