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Patton Electronics 1090
4-Wire Baseband Modem

Patton Model 1090
4-Wire Baseband Modem
Get High Performance Using Two Dedicated Twisted Pair
Model 1090
  Features & Benefits

Model 1090x.21 Model 1090g.703
Model 1090v.35 Model 1090rs232


The Patton Model 1090 KiloModem™ is designed for point-to-point, synchronous communication over four wires (two twisted pair).

Supporting nine switch-selectable synchronous data rates from 48 to 160 kbps, the Model 1090 is perfect for high speed leased line Internet links, LAN interconnection, or campus networking at distances up to 11 miles.

The most unique feature of the Model 1090 is user-replaceable QuikConnect™ interface modules that allow connection to a variety of interfaces: G.703, V.35, X.21, RS-422 and RS-232.

The Model 1090 boasts V.54 diagnostics, a V.52 BERT pattern generator and seven front panel LEDs.

Transformer isolation and surge protection guard data and connected equipment against ground loops and transient surges. Clocking options include internal, external and receive recover.

The Model 1090 features externally accessible DIP switches, automatic equalization and gain control. The twisted-pair line connection is an RJ-45 jack, and several internal AC and DC power supply options are offered.

Product Highlights

The 1090 Adapts To Your Changing Environments

The compact KiloModemPS™ incorporates a feature normally found only on sophisticated rack systems–quick change, plug-in interface modules!

Why limit yourself to one type of interface, when system demands change so rapidly? Today you may need X.21, tomorrow V.35. Be prepared!

There’s nothing worse than getting to the site and discovering that your modem has the wrong interface! Now you can take several interfaces along.

Constantly replacing modems can get quite expensive! Now you can keep your base unit and add different interface modules as the need arises.



Transmission Format: Synchronous
Transmission Line: Unconditioned twisted pair or Local Area Data Circuits (LADS), 19 - 26 AWG (.9mm - .44mm). DC Continuity not required.
Clocking: Internal, external or receive recover
Distance: Up to 11 miles (17.7 Km) on 19 AWG (.9mm) at 56 kbps. Consult distance table.
Data Rates: 48, 56, 64, 72, 80, 112, 128, 144 and 160 kbps (switch selectable)
Carrier Control: “Constantly on” or “Controlled by RTS”
RTS/CTS Delay: no delay, short delay (4-8 ms), or long delay (33-58 ms)
Diagnostics: V.52 compliant bit error rate pattern (511/511E pattern) generator and detector with error injection mode; V.54 compliant—Local Analog Loopback and Remote Digital Loopback, activated by front panel switch or via serial interface
LED Status Indicators: TD, RD, RTS, CD, DTR, ER (error) and TM (test mode)
Isolation: Minimum 3000V RMS via custom transformers
Surge Protection: 600W power dissipation
DTE Interface: V.24/RS-232/V.35/X.21/G.703
Twisted Pair Interface: RJ-45 jack
Power: 115/230 VAC (switch selectable), 50/60 Hz; 85 - 256 VAC, 50/60 Hz (universal input option); 48 VDC (option). 5 watts.
Compliance: CE Marked per EMC Directive 89/336/EEC and Low Voltage Directive 73/23/EEC. UL and cUL Safety Approvals.
Dimensions: 7.3” x 6.6” x 1.62” (18.5 x 16.8 x 4.1 cm)
Weight: 2.02 lbs. (.92 kg)

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