Owner's Manual

The H638 10/100 ethernet switch creates a home network between up to
eight computers. “Plug and play” installation is easy when using the H628 data
hub. The H638 is IEEE 802.3u
100 Base-TX Fast Ethernet
compliant, IEEE 802.3 10 Base-T
compliant and has activity LEDs
for network status and diagnosis.
The H638 shares an MDI “uplink”
port with Port 1 to expand the
network using additional H638
units for systems with more than
eight devices.
Typical Installation
Wiring the H638 Switch
• Use only Category 5e unshielded twisted-pair cable for maximum
performance.
• When connecting to an H628 or a network device directly,
use straight through or crossover RJ-45 cables. All ports will
automatically detect the cable type.
• Each run to a network device should be less than 100 meters
(328 feet).
LED Indicators
• ACTIVE lights are on when a network device is connected and
fl ash when data is transmitted or received. The lights are off when
a port is not connected.
• FULL DUPLEX lights are on when a port is in full duplex mode.
The lights are off when a port is in half duplex mode and fl ash
when a collision occurs. Although some collisions are normal, too
many collisions may indicate a problem such as a faulty cable or
connection.
• 100 MBPS lights are on when a port is in 100 Mbps mode. The
lights are off when the port is in 10 Mbps mode.
Specifi cations: Typical @ 25°C ± 5°C
Compliance
IEEE 802.3u
IEEE 802.3
100 Base-TX, 10 Base-T
and N-way auto-negotiation
Network Interface
RJ-45 ports 8
RJ-45 MDI uplink Port 1
Max Cable Length
CAT-5e (UTP) 100 meters (328 feet)
LED Indicators
each port ACTIVE, 100 MBPS, FULL DUPLEX
Environmental
operating temperature 0°C to 55°C
Power Supply
output current 800mA maximum
output voltage 5 VDC
input power 120 VAC
X4X5 X3 X2 X1X8 X7 X6
ACTIVE
100 MBPS
FULL DUPLEX
®
8 Port 10/100 Ethernet Switch
ChannelPlus model H638
OpenHouse
®
Ethernet Switch
Expanding the Network
Use one of the ports on the fi rst H638 and connect to the
expansion H638 using its MDI “uplink” Port 1. See below for special
instructions.
Using more than one switch
• Use only Category 5e unshielded twisted-pair cable for maximum
performance.
• When connecting two switches, use a straight through or
crossover RJ-45 Category 5e cable. Category 5 patch cords may
be used for short interconnections.
• The cable length between any two switches cannot exceed 100
meters (328 feet).
• Additional switches may be used as long as the path between
any two network devices does not exceed four switches and fi ve
cables.
• All switches used must be powered.
Declaration of Conformity
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS
SUBJECT TO THE FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT
CAUSE HARMFUL INTERFERENCE, AND (2) THIS DEVICE MUST ACCEPT ANY
INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE
UNDESIRED OPERATION.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used according to
the instructions, may cause harmful interference to radio communications. However, there
is no guarantee that interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which if found by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment to an outlet other than the receiver’s outlet.
• Consult a dealer or an experienced radio/TV technician for assistance.
PRINTER’S INSTRUCTIONS:
INSTR,INSTL,H638 - LINEAR P/N: 222317 A - INK: PROCESS COLOR - MATERIAL: 113 GSM WHITE COATED - SIZE: 11.000” X 15.000” - SCALE: 1-1 - FOLDING: 2-FOLD ALTERNATE, 2-FOLD HORIZONTAL INTO THIRDS (FINISH HAS LOGOS SHOWING) - SIDE 1 OF 2
H638