Allied Telesis
www.alliedtelesis.com
X
900-12X AND 24X SERIES
| Advanced Gigabit Layer 3+ Expandable Switches
Combined with one or two 12-port
10/100/1000BASE-T (RJ-45) copper expansion
modules, the x900 is ideal for gigabit to the
desktop or gigabit aggregation applications.The
12 x 100/1000BASE-X (SFP) expansion
modules offer variable port options, designed
for aggregating mixed copper and fiber links in
server farms and data center applications.
x900 Layer 3+ switches provide maximum
Gigabit Ethernet port density in a compact
1RU chassis.Their high degree of flexibility
future-proofs your investment against changes
in network infrastructure, topologies, and
physical link requirements.
Reliability
Dual hot-swappable AC or -48V DC load-
sharing power supplies packaged in the
x900-24X 1RU rack mount chassis, provide the
ultimate in space saving, reliability and resiliency.
These features, combined with front-to-back
cooling, make the x900 series perfect for the
high-density rack environment where space is at
a premium.
Policy-Based Quality of Service
Comprehensive, low latency Quality of Service
(QoS) features operating at wire-speed provide
flow-based traffic management with full
classification, prioritization, traffic shaping and
min/max bandwidth profiles.The x900 QoS
features are ideal for service providers wanting
to ensure maximum availability of premium
voice, video and data services, and at the same
time manage customer service level
agreements. For enterprise customers, the x900
QoS features protect productivity by
guaranteeing performance of business-critical
applications (including VoIP services), and help
to restore and maintain responsiveness of
enterprise applications in the workplace.
Performance
The x900-24X is a powerful Layer 3+ switch
with a 168Gbps switching fabric, achieving wire-
speed switching and routing performance with a
forwarding rate of 71.4Mpps. It can support up
to two wire-speed 10GbE ports for high
performance, high capacity network applications.
The x900-12XT/S is a powerful Layer 3+ switch
with a 84Gbps switching fabric, achieving wire-
speed switching and routing performance with a
forwarding rate of 35.7Mpps. It supports a
10GbE port for high performance, high capacity
network applications.
Hardware Performance
Up to 256K IPv4 routes
Up to 16K MAC addresses maximum
Up to 4K layer 2 multicast groups
Up to 1K layer 3 IPv4 multicast groups
4K VLANs
512MB SDRAM
Separate packet buffer memory
64MB Flash Memory
Switching Fabric
• x900-24X 168Gbps
• x900-12XT/S 84Gbps
Forwarding Rate:
• x900-24X 71.4Mpps
3
• x900-12XT/S 35.7Mpps
4
Reliability
MTBF
x900-24X
With 1 PSU and 1 fan module: 93,700 hours
With 2 PSUs: 249,400 hours
(calculated using Telcordia SR-332 (Issue 1, May
2001) at 25°C ambient operating temperature)
x900-12XT/S
MTBF 103,000 hours
Power Characteristics
AC Voltage: 100 to 240V (+/-10% auto ranging)
Frequency: 47 to 63Hz
DC Voltage: 40 to 60V
Power Consumption
x900-24X
With 1 PSU and 1 fan module:
110 Watts (375 BTU/hr)
With 2 PSUs and 2 XEM-1XP modules:
191 Watts (652 BTU/hr)
x900-12XT/S
With 1 XEM-12: 104 Watts (355 BTU/hr)
With no XEM: 68 Watts (232 BTU/hr)
Environmental Specifications
Operating Temperature Range:
0°C to 40°C (32°F to 104°F)
Derated by 1°C per 305 Meters (1000ft)
Storage Temperature Range:
-25°C to 70°C (-13°F to 158°F)
Operating Relative Humidity Range:
5% to 80% non-condensing
Storage Relative Humidity Range:
5% to 95% non-condensing
Altitude:
3,050 Meters maximum (10,000ft)
Physical Dimensions
Height:
44.5mm (1.75")
Width:
440mm (16.7")
Depth:
x900-24X: 440mm (16.7")
5
x900-12XT/S: 350mm (13.2")
5
Mounting: 19" rack mountable, 1RU form-factor
Weights
x900-24X:
With 1 PSU and 1 fan module:
7.3kg (16.1lbs), and 8.8kg (19.4lbs) packaged.
With 2 PSUs and 2 XEM-1XP
modules:
9.3kg (20.5lbs), and 10.8kg
(23.8lbs) packaged
x900-12XT/S:
No XEM: 5.3kg (11.6lbs), and 7.9kg (17.3lbs)
packaged
With XEM-1XP fitted: 6.0kg (13.2lbs), and 8.6kg
(18.9lbs) packaged
AT-PWR01 (AC or DC):
1.0kg, and packaged 1.8kg (3.9lbs)
(AC) or 1.5kg (3.3lbs) (DC)
AT-FAN01:
0.6kg (1.3lbs), and 1.4kg (3.1lbs) packaged
Electrical Approvals and Compliances
EMC:
EN55022 class A, FCC class A,VCCI
class A
Immunity:
EN55024, EN61000-3 levels 2
(Harmonics), and 3 (Flicker)
– AC models only
NEBS:
GR63, GR1089 level 3
x900-24XT-N and XEM-12S.
Safety
Standards:
UL60950-1, CAN/CSA-C22.2 No.
60950-1-03, EN60950-1,
EN60825-1, AS/NZS 60950.1
Certification: UL, cUL,TUV
Restrictions on Hazardous Substances
(RoHS) Compliance
EU RoHS Compliant
Country of Origin
Singapore
3
With two 12 x 1GbE expansion modules
(SFP or RJ45) installed.
4
With one 12 x 1GbE expansion modules
(SFP or RJ45) installed.
5
This depth measurement excludes the PSU handles.
