2.0 GENERAL INFORMATION
Thank you for your purchase of this Patton Electronics product.
This product has been thoroughly inspected and tested and is
warranted for One Year parts and labor. If any questions or problems
arise during installation or use of this product, please do not hesitate to
contact Patton Electronics Technical Support at (301) 975-1007.
2.1 FEATURES
• Synchronous data rates of 48, 56, 64, 72, 80, 112, 128, 144
and 160 kbps
• Frequency Shift Key (FSK) modulation
• Full or half duplex operation over two twisted pair (4-wire)
• Point-to-point distances up to 11 miles (19 AWG @ 56 kbps)
• V.54 compliant local analog (LAL), remote digital (RDL) and local
digital loopback tests
• V.52 compliant Bit Error Rate (BER) test pattern generator
• Replaceable DTE-DCE QuickConnect™ interface modules
• V.52 compliant BER test pattern generator
• Internal, external or receive recovered clocking options
• Automatic equalization
• Made in the U.S.A.
2.2 DESCRIPTION
The Patton Model 1090 Synchronous Short Range Modem
is designed for point-to-point, high speed communication over 4-wires
(two twisted pair). Supporting switch-selectable data rates from 48 to
160 kbps, the Model 1090 is perfect for connecting two bridge/routers,
or for similar campus applications at distances up to 11 miles. The
Model 1090 incorporates built-in V.54 loopback tests, a V.52 BERT
pattern generator and seven front panel LED indicators. Data integrity
is enhanced by automatic equalization and gain control. The Model
1090 also incorporates transformer isolation and surge protection to
guard data and connected equipment against the hazards of ground
loops and transient surges. Clocking options include internal, external
and receive recover clock.
The Model 1090 is the first Patton product to feature replaceable DCE-
DTE QuickConnect™ interface modules. Several different modules are
available (call Patton Sales for details). Line connection is made by RJ-
45 jack. Internal AC power supply options include 120 or 230VAC
(switchable), 85-256VAC (universal) or 48VDC.
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3.0 CONFIGURATION
The Model 1090 is equipped with one set of eight DIP switches,
and one set of four DIP switches (all externally accessible). These DIP
switches allow configuration of clock source, carrier control, loopback
tests and data rate. This section describes switch locations and
explains all possible configurations.
3.1 EXTERNAL DIP SWITCH SETTINGS
The Model 1090’s DIP switches are located on the underside of
the unit (see Figure 1, below). Figure 2 (below), shows the orientation
of the switch set. All possible settings for the Model 1090’s DIP
switches are presented in the summary table and descriptions on the
following pages. If you have additional questions regarding
configuration, contact Patton Technical Support at (301) 975-1007.
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Figure 2. Close Up of Configuration Switches
ON
1 2 3 4
ON
1 2 3 4 5 6 7 8
ON
1
2
3
4
5
6
7
8
ON
1
2
3
4
Figure 1. Underside of Model 1090 Wish External DIP Switch Locations
S1
S2
FRONT
REAR
S1
S2
