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© Copyright 2011. Black Box Corporation. All rights reserved.
Black Box and the Double Diamond logo are registered trademarks of
BB Technologies, Inc. Mac is a registered trademark of Apple Computer,
Inc. Any other trademarks mentioned in this manual are acknowledged
to be the property of the trademark owners.
BL A C K B O X
®
Add 8 PoE devices to your
existing Gigabit LAN.
8-Port Gigabit 802.3at/af PoE Switch
LPB1308A
Order toll-free in the U.S.:
Call 877-877-BBOX
(outside U.S. call 1-724-746-5500)
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
Customer
Support
Information
Black Box Tech
Support: FREE! Live.
24 /7. Tech support
the way it should be.
BL A C K B O X
®
8-Port Gigabit 802.3at/af PoE Switch
LPB1308A, rev. 1
LPB1308A
1. Specifications
Buffer Memory — 1.625 Mbits
Certifications — FCC Class A
Filtering/Forwarding Rates —
1000-Mbps port: 1,488,000 pps;
100-Mbps port: 148,800 pps;
10-Mbps port: 14,880 pps
MAC Address — 4 K
Transmission Method — Store-and-forward
Transmission Media —
10BASE-T: CAT3, 4, 5 UTP/STP;
100/1000BASE-TX: CAT5 UTP/STP
Standards — IEEE 802.3at/802.3af, IEEE 802.3i
10BASE-T, IEEE 802.3u 100BASE-TX, IEEE 802.ab
1000BASE-TX, IEEE 802.3x flow control
Connectors — (8) RJ-45 PSE/PoE
Indicators — (33) LEDs: Per port: (1) ACT, (1) 10/100,
(1) 1000, (1) PoE;
Per unit: (1) Power LED
Mac
®
PC Workstation PC PC Server Server PC PC
Ethernet
switch
Ethernet
switch
Figure 3-1. Application #1.
3.2 PC/Other Devices to 8-Port Gigabit
802.3at/af PoE Switch
You can connect this switch to PCs, servers, and other
network devices using a straight-through Ethernet
cable.
PC Mac Server Workstation
Figure 3-2. Application #2.
3.3 Connecting a Powered Device to the
Switch Using Power over Ethernet (PoE)
Using a CAT5 cable, connect the powered device (PD)
to any of the eight ports on the switch. The switch will
detect the PD and supply 48-V power to the device
over the CAT5 cable.
NOTE: The PD must comply with the IEEE 802.3at/af
standard.
4. Operation
LED indicators on the 8-Port Gigabit 802.3at/af PoE
Switch’s front panel show status.
Table 4-1. LEDs and their Functions.
LED Status Description
ACT
On Port is connected
Off No connection to port
10/100
Off Port is connected to 10 Mbps
On Port is connected to 100 Mbps
1000
On Port is connected to 1000 Mbps
Off —
PoE
On Port is linked to powered device (PD)
Off No powered device (PD) is connected
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