Specifications

Chapter 1 Introduction
1.4 Chassis Front Description
The front of FRM220A contains the line card slots. They are numbered 1 through 20, from left to right as
viewed from the front. The typical configuration is with one GSW/SNMP (Network Management Controller) card
in rear slot and manageable line cards in any front slot numbered 1 through 20.
FRM220A Series Managed
Line Cards
Figure 1-1 Chassis Front View
1.5 Chassis Rear Description
The rear panel holds the aggregate switch card, the hot-swappable cooling fan modules, and the hot-
swappable power modules. The pluggable modules do not require any tools for removal and replacement.
Alarm Relay
Contacts
Cooling Fan Gigabit Aggregate Switch Card
Terminal Strip
for DC Power
Power Module 1
AC Type Shown
Power Module 2
DC Type Shown
Cooling Fan
IEC AC Mains Input
Figure 1-2 Chassis Rear View
LED Matrix,
Port Status
4x 10/100/1000
Ethernet UTP connections
4x1000Base-SX/LX
(4x2.5G aggregate)
Default pushbutton
8
Figure 1-3 GSW/SNMP Card Detail
Note: Press the Default push-button 1~2 seconds to reveal the IP address via the LED matrix display. Pressing the Default
pushbutton for 6~8 seconds will reset all configurations, including TCP/IP settings, back to factory default.