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Patton Electronics Model 2715
E1/FE1 Network Termination Unit (NTU)

Patton Model 2715
E1/FE1 Network Termination Unit (NTU)
Now there's a Patton MicroPak™ NTU that terminates framed or unframed 2 Mbps E1/FE1 (G.703/G.704) circuits. Small size + Reliable performance = Patton.
Model 2715
  Features & Benefits
  • Terminates 2.048 Mbps E1 (clear channel) and FE1 (n x 64) 4-wire digital services
  • Integral V.35 (M/34) Male connector (DB-60 Cisco router adapter cable available)
  • Standalone (Model 2715) and Rack Mount Cards (Model 2715RC) available
  • Diagnostics include LLB and PLB; DTE local and remote loops; V.54 loop up and loop down
  • AMI or HDB3 line coding
  • Configuration via DIP switches or Control Port
  • External 90 - 260VAC Power Supply
  • Seven easy-to-read diagnostic LEDs

The Patton Model 2715 Network Termination Unit (NTU) terminates both 2.048 Mbps E1 (clear channel) and fractional E1 (n x 64) 4-wire circuits. Housed in our MicroPak enclosure measuring only 12.7 x 5.3 x 2 cm (5.0 x 2.1 x 0.78 inches) the Model 2715 plugs directly into the V.35 DTE interface of a router, switch, FRAD, multiplexer or other networking device.

The Model 2715 supports all necessary G.703/G.704 diagnostics, including CO line loopback (LLB), payload loopback (PLB), DTE local/remote loops, and V.54 loop up/loop down. Diagnostics are initiated via the Model 2715’s control port, or through the DTE or line interfaces. Easily readable LED indicators include TD, RD, Loss of Sync (LOS), Alarm, Error, Test and Power. Configuration of the Model 2715 standalone is done through the control port or using DIP switches. (The Model 2715RC rack card is configured through DIP switches only.)

Model 2715 presents a RJ-45 120 ohm interface to the line and a V.35 interface to the customer's device using a male M/34 connector (the Model 2175RC rack card is available with male or female M/34). An M/34 to DB-60 adapter cable is available for convenient connection to Cisco routers. The Model 2715 is powered by an external Universal Input 100 - 240VAC adapter.



Network Line Connector: 8-Position RJ-45 Connector
Nominal Impedance: 120 ohms; 75 ohms available with Model 460 balun
Network (Line) Data Rate: 2.048 Mbps in accordance with ITU-T G.703 and Fractional E1 in accordance with G.704/G.732
DTE Interface: Integral V.35 (M/34 Male)
Line Encoding: Selectable for AMI or HDB3
Line Framing: G.703 (Unframed) or G.704/G.732 (Framed)
CAS Multi-Framing: Selectable On or Off
CRC-4 Multi-Framing: Selectable On or Off
Clocking: Selectable Internal, External or Network (Receive Recover) Clock
Time Slot Start Position: Any Position
Time Slot Mapping: Contiguous
Local Management: via DIP switches or control port (VT100 ASCII) for standalone NTU; via DIP switches for rack card NTU
Diagnostics: Responds to CO line loopback (LLB) and payload loopback (PLB) via control port and DTE initiated remote LLB and remote PLB (all loops are bi-directional with respect to the DTE); DTE local and remote loops (bi-directional); V.54 loop-up /loop-down as detected in the data stream.
LED Indicators: TXD, RXD, LOS (loss of signal), ALM (alarm), ERR (error), TST (test), PWR
Standards: Fully compliant with ITU-T G.703, G.704, G.732, G.832
Power Supply: 100-240VAC, 50/60 Hz, 0.4A
Dimensions: 5.0” long, 2.1” wide and 0.81” high (12.7 x 5.3 x 2.1 cm)
Weight: 2.02 lbs.

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