Black Box LE2425A Guia De Especificaciones

Approvals: UL

®

Listed (UL80950),

cUL, CE, Emissions meet FCC Part
15, Class A, NEBS Level 3, ETSI

Cooling Method — (3) fans at 7 cfm

each

Ethernet: 14,880 pps; 
Fast Ethernet: 148,000 pps; 
Gigabit Ethernet; 1,488,000 pps

MAC Addresses: 4000 nodes, self

learning, with address aging

IEEE 802.3: 10BASE-T; 
IEEE802.3u: 100BASE-TX/FX; 
IEEE, 802.3z, IEEE 802.3ab: 

1000BASE-X; 

IEEE 802.1d: Spanning Tree; 
IEEE 802.1p: Priority protocol; 
IEEE 802.3x: Flow control

Switching Method: Store and

Forward with IEEE 802.3x full-
duplex flow control, non-blocking

Connectors: LE2425A: DB9 RS-232 

console port; (4) modular slots;

LE2426C: (4) pair SC; 
LE2427C: (4) pair ST; 
LE2428C: (8) RJ-45; 
LE2429C: (4) RJ-45, (2) pair ST; 
LE2430C–LE2431C: (4) RJ-45, 

(2) pair SC; 

LE2432C–LE2433C: 

(1) GBIC open port; 

LE2436C: (8) MT-RJ; 
LE2437C: (8) LC; 
LE2434C: (1) pair SC

Indicators: LEDs:

Per RJ-45 port: (1) Link, 

(1) Activity, (1) Full/Half Duplex, 
(1) 10/100;

Per fiber port: (1) Link, (1) Activity, 

(1) FDX/HDX

Environmental: Temperature: 

Ambient: 25 to 130°F 

(-4 to +54°C); 

Storage: -40 to +185°F 

(-40 to +85°C); 

Humidity: 5 to 95% 

noncondensing; 

Altitude: -200 to +13,000 ft. 

(-61 to +3962.4 m)

Power: Input: 100–240 VAC, 

47–63 Hz, autosensing; 
-48-VDC, 24-VDC, and 125-VDC 
power supplies available on 
request; 

Power consumption: 55 watts 

typical, 60 watts maximum 
(for a fully-loaded fiber 
switch), 35 watts for a fully-
loaded copper-only switch

Size: 1.75"H (1U) x 17"W x 9"D 

(4.4 x 43.2 x 22.9 cm)

Weight: 5 lb. (2.3 kg)

Specifications

First, order the switch chassis…
Managed Fiber Switch .............................................LE2425A
…then select the modules for your application.
(4) 100BASE-FX, 2-km Range

SC, Multimode.........................................................LE2426C

(4) 10BASE-FL, 2-km Range 

ST

®

, Multimode........................................................LE2427C

(8) 10-/100-Mbps RJ-45 .............................................LE2428C
(4) RJ-45 plus (2) 100BASE-FX, 2-km Range

ST, Multimode..........................................................LE2429C
SC, Multimode.........................................................LE2430C

(4) RJ-45 plus (2) 100BASE-FX, 20-km Range

SC, Single-Mode.....................................................LE2431C

(8) 100BASE-FX, 2-km Range

MT-RJ, Multimode  ................................................LE2436C

(8) 100BASE-FX, 15-km Range

LC, Single-Mode .....................................................LE2437C

Gigabit Module (for 1 D-Slot)...................................LE2432C
Gigabit Module (for 1 A-, B-, or C-Slots) ...............LE2433C
For each Gigabit Module, you’ll need…
GBIC Transceiver, (1) 1000BASE-SX Port, 

220-m Range, Multimode SC 
(For use in LE2432C or LE2433C) .........................LE2434C

You may also need…
Blank Covers for Unused A-, B-, or C-Slots .........LE2435C
For optional DC power supplies, special fiber modules,
ETSI rackmounting, or 23" telco rackmounting, call our
FREE Tech Support.

Network Equipment Building System (NEBS) standards set

requirements for telco equipment. The standards are maintained by
Telcordia Technologies, Inc., formerly Bellcore. Bellcore Special Report,
SR-3580 defines three distinct functional levels of NEBS compliance.
The third of these levels, NEBS Level 3, is the most stringent, certifying
carrier-class equipment intended for long-term use in variable
environments.

NEBS Level 3 certifies that a piece of equipment can be safely used

in an extreme environment. To become certified at NEBS Level 3, a
device must meet strict physical, electrical, and environmental
requirements to prove it will operate safely and reliably in extreme
conditions. It must pass a series of tests that include extreme heat,
humidity, fire, earthquakes (Zone 4), light, and noise.

What is NEBS Level 3?

The Managed Fiber Switch features
software support for:

• SNMP
• RMON with statistics, history,

alarms, and events

• Command Line Interface (CLI)

with multi-level password
security

• VLANs, port-based
• Spanning Tree Protocol, 802.1d
• Telnet™, client and server
• Telnet security
• Port Mirroring for selective

traffic analysis

• Event Log for the 1000 most

recent events

• Port Security Settings Control for

both copper and fiber ports

• Remote access security at the IP

address level

• SNTP with worldwide time

zones

• FTP and TFTP for load/save

convenience

• BootP/DHCP for auto-

configuration

• Updates and documentation

over the Internet

• QoS
• DHCP
• IGMP
• SNMPc and OpenViewGUIs