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 71.4Mpps3
•x900-12XT/S 35.7Mpps4
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
3With two 12 x 1GbE expansion modules (SFP or RJ45) installed.
4With one 12 x 1GbE expansion modules (SFP or RJ45) installed.
5This depth measurement excludes the PSU handles.
