The DCE/DTE strap is located on the top side of the 1089/D pc
board (See Figure 8, below). The arrows on the top of the strap indi-
cate the configuration of the X.21 port (for example, if the DCE arrows
are pointing toward the DB-15 connector, the X.21 port is wired as a
DCE). Change the DCE/DTE orientation by pulling the strap out of its
socket, rotating it 180º, then plugging the strap back into the socket.
You will see that the DCE/DTE arrows now point in the opposite direc-
tions, showing the new configuration of the X.21 port.
To close the
case, fit the 2 halves together snugly and snap them back in place.
4.4 CONNECTING POWER
The Model 1089 (all versions) are available with Universal AC
(100-240VAC), 120VAC, 230VAC or -48VDC power options. This sec-
tion describes these options.
4.4.1 Universal AC Power (100-240VAC)
The Model 1089 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 1089 by means of a barrel jack on the rear panel.
Many international power cords are available for the universal power
supply (Please refer to Appendix B for country-specific power cords.
The Model 1089 powers up as soon as it is plugged into an AC
outlet--there is no power switch.
13
4.4.2 120 VAC Power (US)
The 100-132 VAC adapter supplied with the U.S. version of the
Model 1089 is a wall mount type and may be plugged into any
approved 120 VAC wall jack.
4.4.3 230 VAC Power (International)
The 230 VAC adapter supplied with the International version of the
Model 1089 is a wall mount type and may be plugged into any
approved 230 VAC wall jack.
4.4.4 DC Power
The 36-60 VDC DC to DC adapter is supplied with the DC version
of the Model 1089. The black and red leads plug into a DC source
(nominal 48VDC) and the barrel power connector plugs into the barrel
power supply jack on the rear panel of the 1089. (See Figure 9).
14
DCE/DTE Strap
DB-15 Connector
Figure 8.
Setting the DCE/DTE Strap
Figure 9.
Connecting DC Power to the 48V-PSM DC Power Supply.
WARNING!
There are no user-serviceable parts in the
power supply section of the Model 1089. Fuse replacement
should only be performed by qualified service personnel.
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], for more information.
To Power
Supply Jack
To -48VDC
Source
-Vin
+Vin
SWITCHING POWER SUPPL
Y
MODEL
: SYD1
106-0505
INPUT
: 36-60V 0.2A
MAX
OUTPUT
: +5V 1.0A
OUTPUT
POWER : 5W MAX
S/N
: G01234567890
MADE IN CHINA
BY
SUNNY
Black lead (-V)
Red lead (+V)
Barrel power connector
