Black Box LB008A, LB005A User Manual
5- and 8-Port Fast Ethernet Switches
Provides five or eight 10-/100-Mbps ports.
Use this palm-sized switch for small to medium workgroups.
LB005A
LB008A
Customer
Support
Information
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S.
call 724-746-5500) FREE technical support 24 hours a day, 7 days a
week: Call 724-746-5500 or fax 724-746-0746 Mailing address:
Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com
Chapter 1: Specifications
1. Specifications
Buffer Memor y — 512 K
Certifications — FCC Class B
Filtering/Forwarding Rates — 100-Mbps port: 148,880 pps,
10-Mbps port: 14,880 pps
MAC Address — LB005A: 2 K; LB008A: 1 K
Standards — IEEE 802.3 10BASE-T, IEEE 802.3u 100BASE-TX, IEEE 802.3x flow
control
Transmission Media — 10BASE-T CAT3, 4, 5 UTP/STP;
100BASE-TX CAT5 UTP/STP
Transmission Method — Store and forward
Connectors — LB005A: (5) RJ-45; LB008A: (8) RJ-45
Indicators — Per unit: (1) Power LED; Per port: LB005A: (5) LINK/ACT LEDs;
LB008A: (8) LINK/ACT LEDs
Temperature Tolerance — Operating: 32 to 131° F (0 to 55° C);
Storage: -4 to 194° F (-20 to +90° C)
Relative Humidity — 10 to 90%, non-condensing
Power — 5 VDC power supply,
Consumption: 6 watts (max.)
Size — 0.9"H x 4.1"W x 5.5"D (2.5 x 10.5 x 14 cm)
Weight — LB005A: 0.42 lb. (0.19 kg);
LB008A: 0.48 lb. (0.22 kg)
LB005A
724-746-5500 | blackbox.com
Page 1
Chapter 2: Overview
2. Overview
2.1 Introduction
The 5- and 8-Port Fast Ethernet Switches provide five or eight 10-/100-Mbps ports.
Use this palm-sized switch to add devices to small- or medium-sized workgroups.
Install it where space is limited to upgrade network capacity.
2.2 Features
• Autonegotiates 10- /100-Mbps speed and networking configurations.
• Palm-sized switch includes a plastic case.
• Autodetects full- and half-duplex modes for any port.
• Dedicated full-duplex 200-Mbps bandwidth.
• Uses store-and-forward switching methods.
• Conforms to IEEE 802.3x standard flow control for full-duplex and backpressure
flow control for half-duplex.
• Features non-blocking and non-head-of-line-blocking full-wire-speed forwarding.
• Supports Auto MDI/MDI-X functions for any port.
• Smart plug-and-play.
2.3 What’s Included
Your package should include the following items. If anything is missing or
damaged, contact Black Box Technical Support at 724-746-5500 or
info@blackbox.com.
• 5- or 8-Port Fast Ethernet Switch (LB005A or LB008A)
• 5-VDC power adapter
• This user’s manual
2.4 Hardware Description
Figures 2-1 through 2-4 show the front and back panels of the switches. Tables 2-1
and 2-2 describe their components.
LB005A
724-746-5500 | blackbox.com
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