17
18
DTE Shield (DB-15 Pin 1) & FRGND (JB3)
In the connected position, this strap links DB-15 pin 1 & frame
ground. In the open position, pin 1 is disconnected from frame ground.
JB3
Position 1&2 = DTE Shield (Pin 1) and FRGND Connected
Position 2&3 = DTE Shield (Pin 1) and FRGND Not Connected
SGND & FRGND (JB4)
In the connected position, this strap links DB-15 pin 8 (Signal
Ground) and frame ground through a 100 ohm resistor. In the open
position, pin 8 is connected directly to frame ground.
JB4
Position 1&2 = SGND (Pin 8) and FRGND Connected through
a 100 ohm resistor
Position 2&3 = SGND (Pin 8) and FRGND Directly Connected
44..00
IIN
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ON
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This section describes the functions of the Model 1001R14 rack
chassis, tells how to install front and rear Model 1094ARC Series cards
into the chassis, and how to connect to the twisted pair interface and
the serial interface.
4.1 THE MODEL 1001R14 RACK CHASSIS
The Model 1001R14 Rack Chassis (Figure 9, below) has fourteen
short range modem card slots, plus its own power supply. Measuring
only 3.5” high, the Model 1001R14 is designed to occupy only 2U in a
19” rack. Sturdy front handles allow the Model 1001R14 to be extract-
ed and transported conveniently.
4.1.1 The Rack Power Supply
The power supply included in the Model 1001R14 rack uses the
same mid-plane architecture as the modem cards. The front card of
the power supply slides in from the front, and the rear card slides in
from the rear. They plug into one another in the middle of the rack.
The front card is then secured by thumb screws and the rear card by
conventional metal screws.
Figure 9: Model 1001R14 Rack Chassis with power supply
WARNING!
There are no user-serviceable parts in the
power supply section of the Model 1094ARC Series.
Voltage setting changes and fuse replacement should
only be performed by qualified service personnel.
Contact Patton Electronics Technical support at (301)975-
1007 for more information.
