Patton OnSite 2701A/I User manual

OnSite™ Model 2701A/I
E1/T1 Ethernet Bridge (NTU)
User Manual
Sales Office: [phone]
Technical Support: [phone]
E-mail: [e-mail]
WWW: www.patton.com
Part Number: 07MOS2701A/I-UM, Rev. A
Revised: February 26, 2017
Important
This is a Class A device and is intended for use in a light industrial environment. It is not intended
nor approved for use in an industrial or residential environment.

Patton Electronics Company, Inc.
7622 Rickenbacker Drive
Gaithersburg, MD 20879 USA
Tel: [phone]
Fax: [phone]
Support: [phone]
Web: www.patton.com
E-mail: [email protected]
Trademark Statement
The term OnSite is a trademark of Patton Electronics Company. All other trademarks
presented in this document are the property of their respective owners.
Copyright © 2017, Patton Electronics Company. All rights reserved.
The information in this document is subject to change without notice. Patton
Electronics assumes no liability for errors that may appear in this document.
Warranty Information
The software described in this document is furnished under a license and may
be used or copied only in accordance with the terms of such license.
Patton Electronics warrants all OnSite device components to be free from
defects, and will—at our option—repair or replace the product should it fail
within one year from the first date of the shipment.
This warranty is limited to defects in workmanship or materials, and does not
cover customer damage, abuse or unauthorized modification. If the product
fails to perform as warranted, your sole recourse shall be repair or replacement
as described above. Under no condition shall Patton Electronics be liable for
any damages incurred by the use of this product. These damages include, but
are not limited to, the following: lost profits, lost savings and incidental or
consequential damages arising from the use of or inability to use this product.
Patton Electronics specifically disclaims all other warranties, expressed or
implied, and the installation or use of this product shall be deemed an accep-
tance of these terms by the user.
Note Conformity documents of all Patton products can be viewed online at
www.patton.com under the appropriate product page.

3
Summary Table of Contents
1General information ..........................................................................................................................................11
2Installation ............................................................
............................................................................................19
3Operation.......
...................................................................................................................................................32
4Contacting Patton for assistance.....................................................
....................................................................34
ACompliance Information ..............................
.....................................................................................................37
BSpecifications ....................................................................................................................................................40
CFactory Replacement Parts and Accessories ................................................
........................................................42
DInterface Pin Assignment ...........................................
.......................................................................................44
ELine Rate & Reach Chart ...........
.......................................................................................................................48

4
Table of Contents
Summary Table of Contents ............................................................................................................................. 3
Table of Contents ............................................................................................................................................. 4
List of Figures .................................................................................................................................................. 6
List of Tables .................................................................................................................................................... 7
About This Guide ............................................................................................................................................ 8
Safety When Working With Electricity .............................................................................................................9
General information ....................................................................................
......................................................11
Overview ...............................................................................................................................................................12
Features .................................................................................................................................................................12
Description............................................................................................................................................................12
Unit Definitions ....................................................................................................................................................13
Data ......................................................................................................................................................................13
Power ....................................................................................................................................................................13
Front panel description..........................................................................................................................................15
Power Transmission ...............................................................................................................................................16
General Background .......................................................................................................................................16
Wire Specifics .................................................................................................................................................17
2701A/I specifics .............................................................................................................................................18
1Installation............
.............................................................................................................................................19
Planning the Installation........................................................................................................................................20
Installing accessories ..............................................................................................................................................20
Installing the DIN Rail Installation Kit; 35MM (INS/A-DIN-35) ..................................................................20
Installing the 19" Rackmount Adjustable Depth 35MM DIN Rail Kit (NS-1001R-19ADJDIN) ..................23
Installing the Mounting Ears Installation Kit (INS-KIT-MNTEARS) .............................................................24
Installing the Mounting Plate Installation Kit (INS-KIT-MNTPLATE) .........................................................26
Connecting the Line Interface ...............................................................................................................................26
Connecting the RJ-45 Line Interface ..............................................................................................................27
Connecting the Terminal Block Line Interface ................................................................................................28
Connecting the BNC (Coaxial) Line Interface ................................................................................................28
Connecting the 10/100Base-T Ethernet Interface..................................................................................................29
Connecting the Grounding Stud ...........................................................................................................................30
Connecting Power .................................................................................................................................................30
Configuring the DIP Switch..................................................................................................................................31
2Operation..........................
................................................................................................................................32
Introduction ..........................................................................................................................................................33
Front Panel LED Status Indicators.........................................................................................................................33
3Contacting Patton for assistance...................................................................
......................................................34
Introduction ..........................................................................................................................................................35
Contact information..............................................................................................................................................35

5
CopperLink Line Power 1101E PoE Extender User Manual
Warranty Service and Returned Merchandise Authorizations (RMAs) ...................................................................35
Warranty Coverage ..........................................................................................................................................35
Out-of-Warranty Service .................................................................................................................................35
Returns for Credit ...........................................................................................................................................35
RMA Numbers ...............................................................................................................................................36
Shipping Instructions ......................................................................................................................................36
ACompliance Information .................................................................................
..................................................37
Regulatory Information .........................................................................................................................................38
EMC Directive: ..............................................................................................................................................38
Low-Voltage Directive (Safety): .......................................................................................................................38
PSTN: ............................................................................................................................................................38
Radio and TV Interference (FCC Part 15).............................................................................................................38
CE Declaration of Conformity ..............................................................................................................................38
Authorized European Representative .....................................................................................................................39
Service ...................................................................................................................................................................39
BSpecifications ............................
........................................................................................................................40
Line Connector .....................................................................................................................................................41
LAN Connectors ...................................................................................................................................................41
Transmission Line..................................................................................................................................................41
LED Status Indicators ...........................................................................................................................................41
Power Supply .........................................................................................................................................................41
External AC option: ........................................................................................................................................41
Physical .................................................................................................................................................................41
Operating Temperature Range ........................................................................................................................41
Humidity ........................................................................................................................................................41
Dimensions .....................................................................................................................................................41
Weight ............................................................................................................................................................41
CFactory Replacement Parts and Accessories ................................................
........................................................42
2701A/I Factory Replacement Parts and Accessories..............................................................................................43
DInterface Pin Assignment ........................................
...........................................................................................44
10/100Base-T Interface .........................................................................................................................................45
Ethernet (RJ-45) .............................................................................................................................................45
Line Interface ........................................................................................................................................................46
RJ-45 .............................................................................................................................................................46
Terminal Block ...............................................................................................................................................46
BNC (Coaxial) ................................................................................................................................................47
ELine Rate & Reach Chart ..........................................................................................
........................................48
2701A/I Power & Data Performance (Twisted Pair)...............................................................................................49
2701A/I Power Performance (Twisted Pair) ...........................................................................................................49
2701A/I Power & Data Performance (RG59) ........................................................................................................50
2701A/I Power Performance (RG59) .....................................................................................................................50

6
List of Figures
1 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2 Data path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3 Power supply and data paths for power-across-link application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4 Power supply and data paths for remote-power application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 2701A/I front panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6 Power supply and data paths for remote-power application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7 Removing the rear panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
8 Installing the 35 mm DIN clip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
9 Installing the rear panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
10 DIN rail types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
11 Installing the 2701A/I onto the DIN rail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
12 Installing the Rackmount DIN rail onto the rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
13 Installing the mounting ears . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
14 Installing the rear panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
15 Installing the mounting plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
16 RJ-45 pin-out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
17 2701A/I 10/100Base-T RJ-45 Connector Pin-out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
18 4-position DIP switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
19 2701A/I 10/100Base-T RJ-45 Connector Pin-out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
20 RJ-45 pin-out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

7
List of Tables
1 RJ-45 wire modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2 Terminal block wire modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3 Coaxial (BNC) wire modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4 RJ-45 wire modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5 DIP switch settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6 LED status descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7 Remote unit PoE LVL LED definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
8 RJ-45 wire modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
9 RJ-45 wire modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
10 Terminal block wire modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
11 Coaxial (BNC) wire modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
12 2701A/I power & data performance over twisted-pair wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
13 2701A/I power performance over twisted-pair wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
14 2701A/I power & data performance over RG59 coaxial cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
15 2701A/I power performance over RG59 coaxial cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8
OnSite 2701A/I E1/T1 Ethernet Bridge (NTU) User Manual About This Guide
About This Guide
This guide describes the OnSite 2701A/I hardware, installation, and basic configuration.
Audience
This guide is intended for the following users:
•Operators
•Installers
•Maintenance technicians
Structure
This guide contains the following chapters and appendices:
•Chapter 1 on page 12 provides information about router features and capabilities
•Chapter 2 on page 18 contains an overview describing NTU operation
•Chapter 3 on page 25 describes configuring the Ethernet LAN interface
•Chapter 4 on page 29 describes configuring the serial WAN interfaces
•Chapter 5 on page 34 describes configuring WAN services
•Chapter 6 on page 44 describes DHCP and DNS configuration
•Chapter 7 on page 52 describes system configuration
•Chapter 8 on page 61 describes SNTP client configuration
•Chapter 9 on page 65 provides a summary of the OnSite device’s status webpage and status LEDs
•Chapter 10 on page 69contains information on contacting Patton technical support for assistance
•Appendix A on page 72 contains compliance information for the OnSite NTU
•Appendix B on page 74 contains specifications for the NTU
•Appendix C on page 78 provides cable recommendations
•Appendix D on page 80 describes the NTU’s ports
•Appendix E on page 83 describes how to use the command line interface (CLI)
For best results, read the contents of this guide before you install the OnSite 2701A/I.
Precautions
Notes and cautions, which have the following meanings, are used throughout this guide to help you become
aware of potential Device modem problems. Warnings relate to personal injury issues, and Cautions refer to
potential property damage.
Note A note presents addition.al information or interesting sidelights.

9
OnSite 2701A/I E1/T1 Ethernet Bridge (NTU) User Manual About This Guide
The alert symbol and IMPORTANT heading calls attention to
important information.
IMPORTAN
T

10
OnSite 2701A/I E1/T1 Ethernet Bridge (NTU) User Manual About This Guide
Safety when working with electricity
The alert symbol and CAUTION heading indicate a potential
hazard. Strictly follow the instructions to avoid property
damage.
The shock hazard symbol and CAUTION heading indicate a
potential electric shock hazard. Strictly follow the instructions to
avoid property damage caused by electric shock.
The alert symbol and WARNING heading indicate a poten-
tial safety hazard. Strictly follow the warning instructions
to avoid personal injury.
The shock hazard symbol and WARNING heading indicate
a potential electric shock hazard. Strictly follow the warn-
ing instructions to avoid injury caused by electric shock.
•This device contains no user serviceable parts. The
equipment shall be returned to Patton Electronics for
repairs, or repaired by qualified service personnel.
•Mains Voltage: Do not open the case the when the power
cord is attached. Line voltages are present within the
power supply when the power cords are connected. The
mains outlet that is utilized to power the devise shall be
within 10 feet (3 meters) of the device, shall be easily
accessible, and protected by a circuit breaker.
•For AC powered units, ensure that the power cable used
meets all applicable standards for the country in which it
is to be installed, and that it is connected to a wall outlet
which has earth ground.
•For units with an external power adapter, the adapter
shall be a listed Limited Power Source.
•Hazardous network voltages are present in WAN ports
regardless of whether power to the unit is ON or OFF. To
avoid electric shock, use caution when near WAN ports.
When detaching the cables, detach the end away from
the device first.
•Do not work on the system or connect or disconnect
cables during periods of lightning activity.
CAUTION
CAUTION
WARNING
WARNING
WARNING

11
OnSite 2701A/I E1/T1 Ethernet Bridge (NTU) User Manual About This Guide
General observations
•Clean the case with a soft slightly moist anti-static cloth
•Place the unit on a flat surface and ensure free air circulation
•Avoid exposing the unit to direct sunlight and other heat sources
•Protect the unit from moisture, vapors, and corrosive liquids
Factory default parameters
The OnSite device has the following factory default parameters:
•Ethernet IP address: 192.168.200.10/24
•WAN Connection: PPP Bridged
•Ethernet connection
•MDI (LAN connector)
•T1 configuration. RJ-48C (100-ohm) interface
•E1 configuration. RJ-48C (120-ohm) and dual-BNC interface (75-ohm)
Typographical conventions used in this document
This section describes the typographical conventions and terms used in this guide.
General conventions
The procedures described in this manual use the following text conventions:
In accordance with the requirements of council directive 2002/
96/EC on Waste of Electrical and Electronic Equipment
(WEEE), ensure that at end-of-life you separate this product
from other waste and scrap and deliver to the WEEE collection
system in your country for recycling.
Table 1. General conventions
Convention Meaning
Garamond blue type Indicates a cross-reference hyperlink that points to a figure, graphic, table, or sec-
tion heading. Clicking on the hyperlink jumps you to the reference. When you
have finished reviewing the reference, click on the Go to Previous View
button in the Adobe® Acrobat® Reader toolbar to return to your starting point.
Helvetica bold type Commands and keywords are in boldface font.
Helvetica bold-italic type Parts of commands, which are related to elements already named by the user,
are in boldface italic font.
Italicized Helvetica type Variables for which you supply values are in italic font
Helvetica type Indicates the names of fields or windows.
Garamond bold type Indicates the names of command buttons that execute an action.

12
Chapter 1 General information
Chapter contents
OnSite NTU overview ..........................................................................................................................................13
General attributes ............................................................................................................................................13
Ethernet ..........................................................................................................................................................13
Protocol support .............................................................................................................................................13
PPP Support ...................................................................................................................................................14
WAN Interfaces ..............................................................................................................................................14
Management ...................................................................................................................................................14
Front Panel Status LEDs and Console Port .....................................................................................................14
Console port .............................................................................................................................................15
Rear panel connectors and switches .................................................................................................................15
Power connector .......................................................................................................................................16
AC universal power supply .................................................................................................................. 16
48 VDC power supply ........................................................................................................................ 16
Ethernet port (outlined in green) ...............................................................................................................16
MDI-X ......................................................................................................................................................16
Applications Overview...........................................................................................................................................17

OnSite NTU overview 13
OnSite 2701A/I E1/T1 Ethernet Bridge (NTU) User Manual 1• General information
OnSite NTU overview
The OnSite NTU enables the termination of E1 or T1 to 10/100Base-TX. The device is configured for plug-
and-play operation. The device comes with an auto-sensing full-duplex 10/100Base-T Ethernet port, MDI-X
cross-over switch, console port, and internal or external power supply.
The following sections describes the OnSite device features and capabilities:
•General attributes, see section “General attributes”
•Ethernet, see section “Ethernet” on page 13
•Protocol support, see section “Protocol support” on page 13
•PPP support, see section “PPP Support” on page 14
•Management, see section “Management” on page 14
•WAN interface, see section “WAN Interfaces” on page 14
•Front panel status LED see section “Front Panel Status LEDs and Console Port” on page 14
General attributes
•Compact, low cost NTU/bridge
•10/100 Ethernet
•Comprehensive hardware diagnostics. Easy maintenance and effortless installation.
•Plug-and-Play operation for fast and seamless turn-up with pre-configured WAN and LAN options.
•Built-in web configuration.
•Setup allows for standard IP address and unique method for entering an IP address and mask without
requiring a console connection. Default IP address of 192.168.1.1/24.
•Simple software upgrades obtained via FTP.
•Front panel LEDs indicate Power, WAN, and Ethernet LAN speed and status.
•Convenient and standard RJ connectors for Ethernet, Line, and Console.
•Standard one-year parts and labor warranty.
Ethernet
•Auto-sensing full-duplex 10Base-T/100Base-TX Ethernet.
•Standard RJ-45 connector
•Built-in MDI-X cross-over switch.
•IEEE 802.1d transparent learning bridge
•2 IP address/subnets on Ethernet interface.
Protocol support
•Complete internetworking with IP (RFC 741), TCP (RFC 793), UDP (RFC 768), ICMP (RFC 950),
ARP (RFC 826).

OnSite NTU overview 14
OnSite 2701A/I E1/T1 Ethernet Bridge (NTU) User Manual 1• General information
•Built-in ping and traceroute facilities.
•Integrated DHCP server (RFC 2131).
•DNS relay with primary and secondary name server selection.
•Frame Relay with Annex A/D LMI, RFC 1490 and FRF.12 Fragmentation.
PPP Support
•Point-to-point protocol over HDLC
•PPPoE (RFC 2516) Client for autonomous network connection. Eliminates the requirement of installing
client software on a local PC and allows sharing of the connection across a LAN.
•User configurable PPP PAP (RFC 1661) or CHAP (RFC 1994) authentication.
WAN Interfaces
•T1/E1
Management
•Web-based configuration via embedded web server
•CLI menu for configuration, management, and diagnostics.
•Local/Remote CLI (VT-100 or Telnet).
•SNMPv1 (RFC 1157) MIB II (RFC 1213)
•Logging via SYSLOG, and VT-100 console. Console port set at 9600 bps 8/N/1 settings no flow control.
Front Panel Status LEDs and Console Port
The OnSite NTUs have all status LEDs and console port on the front panel of the unit, and all other electrical
connections are located on the rear panel.
Figure 1. OnSite E1/T1 NTU (Model 2701A/I)

OnSite NTU overview 15
OnSite 2701A/I E1/T1 Ethernet Bridge (NTU) User Manual 1• General information
The status LEDs from left to right are (see table 2 for LED descriptions):
•Power
•E1/T1 TD, RD, CTS, and DTR
•Ethernet Link, 100M, Tx, and Rx
Console port
Located on the front panel, the unshielded RJ-45 RS-232 console DCE port (EIA-561) with the pin-out listed
in the following table:
Rear panel connectors and switches
On the rear panel from left to right are the following:
•Power input connector
Table 2. Status LED descriptions
Power Green ON indicates that power is applied. Off indicates
that no power is applied.
T1/E1 Link Green Solid green: connected
Off: disconnected
LOS Red On: indicates a T1/E1 loss-of-frame condition. It
also indicates that no T1/E1 signal is detected.
TD Green Green: indicates a binary ‘0’ condition
off: indicates a binary ‘1’or idle condition
RD Green Green: indicates a binary ‘0’condition
off: indicates a binary ‘1’ or idle condition
Ethernet Link Green ON: indicates an active 10/100 Base-T connec-
tion
100M Green ON: connected to a 100BaseT LAN
Off: connected to a 10BaseT LAN
Tx Green Flashing: when transmitting data from the NTU
to the Ethernet
Rx Green Flashing: when transmitting data from the Ether-
net to the NTU.
Pin No. Signal Direction Signal Name
1Out DSR
2Out CD
3In DTR
4 — Signal Ground
5Out RD
6In TD
7Out CTS
8In RTS

OnSite NTU overview 16
OnSite 2701A/I E1/T1 Ethernet Bridge (NTU) User Manual 1• General information
•Ethernet connector
•MDI-X switch
•WAN port (T1/E1)
Power connector
AC universal power supply.
The OnSite device offers internal or external AC power supply options.
•The internal power supply connects to an AC source via an IEC-320 connector (100–240 VAC, 200 mA,
50/60 Hz)
•The external power supply connects to an external source providing +5 VDC via a barrel-type connector
48 VDC power supply.
•The DC power supply connects to a DC source via a terminal block
•Rated voltage and current: 36–60 VDC, 400 mA
Ethernet port (outlined in green)
Shielded RJ-45 10Base-T/100Base-TX Ethernet port using pins 1, 2, 3, and 6. See MDI-X switch for hub or
transceiver configuration.The following table defines conditions that occur when the MDI-X switch is in the
out position.
MDI-X
The MDI-X push switch operates as follows:
•When in the default “out” position, the Ethernet circuitry takes on a straight-through MDI configuration
and functions as a transceiver. It will connect directly to a hub.
•When in the “in” position, the Ethernet circuitry is configured in cross-over MDI-X mode so that a
straight-through cable can connect The OnSite device’s Ethernet port directly to a PC’s NIC card.
Connect the equipment to a 36–60 VDC source that is electri-
cally isolated from the AC source. The 36–60 VDC source is to
be reliably connected to earth.
Pin No. Signal Direction Signal Name
1Output TX+
2Output TX-
3Input RX+
4 — —
5 — —
6Input RX-
7 — —
8 — —
CAUTION

Applications Overview 17
OnSite 2701A/I E1/T1 Ethernet Bridge (NTU) User Manual 1• General information
Applications Overview
OnSite NTUs offer a simple and reliable way for terminating E1/T1 to Ethernet.
Figure 2. T1/E1 Application

18
Chapter 2 Installation
Chapter contents
Hardware Installation ............................................................................................................................................19
What you will need .........................................................................................................................................19
Interface cable installation ...............................................................................................................................19
Installing the AC power cord ..........................................................................................................................20
Logging onto the OnSite device ......................................................................................................................22
IP address modification ...................................................................................................................................23
Installing the Ethernet cables ..........................................................................................................................23
Web Operation and Configuration .................................................................................................................24
Web Browser .............................................................................................................................................24

Hardware Installation 19
OnSite 2701A/I E1/T1 Ethernet Bridge (NTU) User Manual 2• Installation
Hardware Installation
If you are already familiar with OnSite device installation and configuration, this chapter will enable you to fin-
ish the job quickly. Installation consists of the following:
•Preparing for the installation (see section “What you will need”)
•Installing the T1/E1 WAN interface cable (see section “Interface cable installation”)
•Installing the AC power cord (see section “Installing the AC power cord” on page 20)
•Verifying that the unit will power up, and running a HyperTerminal session (see section “Logging onto the
OnSite device” on page 22)
•Changing the IP address from the factory default setting (see section “IP address modification” on page 23)
•Installing the Ethernet cable (see section “Installing the Ethernet cables” on page 23)
•Launching a web browser in preparation for configuring the modem (see “Web Operation and Configura-
tion” on page 24)
What you will need
•OnSite NTU
•Ethernet cable with RJ45 plugs on each end (included with NTU)
•DB9-RJ45 adapter (included with NTU)
•RJ45/RJ45 straight-through cable for connecting to control port (included with NTU)
•PC computer with HyperTerminal or equivalent VT-100 emulation program, or an ASCII terminal (also
called a dumb terminal) capable of emulating a VT-100.
Interface cable installation
The OnSite NTU comes with a selectable T1/E1 WAN interface (see figure 3 on page 20). Located on the
back of the OnSite device, the T1 and E1 interfaces are presented on an RJ-48C connector with selectable line
impedances of 100-ohms for T1 and 120-ohms for E1 lines (see figure 4). The NTU also comes with dual
BNC for alternate connection to unbalanced 75-ohm E1 lines (see figure 3 on page 20).
The interconnecting cables shall be acceptable for external use
and shall be rated for the proper application with respect to volt-
age, current, anticipated temperature, flammability, and
mechanical serviceability.
The interconnecting cables shall be acceptable for external use
and shall be rated for the proper application with respect to volt-
age, current, anticipated temperature, flammability, and
mechanical serviceability.
CAUTION
CAUTION

Hardware Installation 20
OnSite 2701A/I E1/T1 Ethernet Bridge (NTU) User Manual 2• Installation
Figure 3. Rear View of the NTU showing location of Ethernet and WAN connectors
Figure 4. RJ-48C pin-out diagram
The interface cable has been installed; go to section “Installing the AC power cord”.
Installing the AC power cord
The OnSite device comes with an internal or external power supply. This section describes installing the power
cord into the OnSite device. Do the following:
The interconnecting cables shall be acceptable for external use
and shall be rated for the proper application with respect to volt-
age, current, anticipated temperature, flammability, and
mechanical serviceability.
Crossover
10/100
EthernetWAN
Power
MDI-X
RX connector
(BNC)
RX TX
TX connector
(BNC)
WAN connector
(RJ-48C)
Ethernet connector
(RJ-45)
12345678
RX RX TX TX
CAUTION