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5.4 POWER CONNECTION
Universal AC Power (100-240VAC)
The Model 2701/I uses a 5VDC, 2A universal input 100-240VAC,
power supply (center pin is +5V). The universal input power supply
has a male IEC-320 power entry connector. This power supply con-
nects to the Model 2701/I by means of a barrel jack on the rear panel.
Many international power cords are available for the universal power
supply.
The Model 2701/I powers up as soon as it is plugged into an AC
outlet--there is no power switch.
DC Power
The 36-60 VDC DC to DC adapter supplied with the DC version of
the Model 2701/I plugs in a DC source (nominal 48VDC) and plugs
into the barrel power supply jack on the rear of the 2701/I. Please
refer to Figure 10, below, to make the proper connection.
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OPPEER
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ATTIIO
ON
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When the Model 2701/I has been properly configured and
installed, it should operate transparently. This sections describes
power-up, LED status monitors, and the built-in loopback test modes.
6.1 POWER-UP
Before applying power to the Model 2701/I, please read Section
5.4 and ensure that the unit is properly connected to the appropriate
power source.
6.2 LED STATUS MONITORS
The Model 2701/I features six front panel LEDs that monitor con-
nections on the G.703/G.704 and 10BaseT links, signaling, error and
test modes. Figure 11 (below) shows the front panel location of each
LED. Descriptions of each LED follow Figure 11.
E1 Link
(Active Green) Solid green (On) indicates that the
end to end E1 Link is up, signifying that the link is
active. The E1 Link LED is Off when the link is
down.
10BT Link
(Active Green) Solid green indicates that the
10BaseT Ethernet interface has detected a valid
SQE heartbeat, signifying a valid 10BaseT con-
nection.
Status
Blinks yellow from one to eleven times to indicate
system status. Each pulse pattern is separated by
a 2 second “off” period. Greater pulse patterns
have higher priority (buffer saturation has greater
priority than an empty MAC table). Valid system
statuses are:
1 pulse
= system status is okay
2 pulses = no MAC entries in the MAC
Address Table
WARNING!
There are no user-serviceable parts in the
power supply section of the Model 2701/I. For more informa-
tion, please contact Patton Electronics Technical Support at
(301)975-1007, via our web site at http://www.patton.com, or
by e-mail at [email protected].
Figure 10: Connecting DC Power to the 2701/I DC Power Supply.
Figure 11: 2701/I Front Panel
+ Vin
To Power
Supply Jack
- Vin
To -48VDC
Source
