Patton 2073RC User Manual

USER MANUAL
MODEL 2073RC
64k/G.703 Access Converter
An ISO-9001Certified
Company
Part# 07M2073RC Doc# 031151U Rev. A Revised 1/23/03
SALES OFFICE (301) 975-1000 TECHNICAL SUPPORT (301) 975-1007
CONTENTS
1.0 Warranty Information ................................................................. 4
1.1 Radio and TV Interference............................................................ 4
1.2 CE Notice...................................................................................... 4
1.3 Service.......................................................................................... 5
2.0 General Information.................................................................... 6
2.1 Features........................................................................................ 6
2.2 Description.................................................................................... 6
3.0 Configuration .............................................................................. 7
3.1 Configuring the Front Interface Card............................................ 8
Switches SW3-2 and SW3-1: Clocking Mode .............................. 8
Switches SW3-5: Front panel switch enabled/disabled................ 9
Switch SW3-6: Response to DTE Request for Local
and Remote Loop......................................................................... 9
Switch SW3-4 Response to Remote digital (RDL) Loopback....... 9
Switch SW3-3 Terminal (DTE) data sampled using the 2073RC Transmit clock or External Clock (provided by
V.35 DTEs only) ........................................................................... 9
3.2 Configuring the Rear Interface Card........................................... 10
Model 1001RCM13448C Strap Settings .................................... 12
DTE Shield (M/34 Pin A) & FRGND (JB3). .........................13
SGND & FRGND (JB4). ......................................................13
Model 1001RCM11548C Strap Settings .................................... 13
DTE Shield (DB-15 Pin 1) & FRGND (JB3) ......................... 14
SGND & FRGND (JB4) .......................................................15
Model IM2RC/IA (10Base-T Ethernet Rear Card)...................... 15
Status .................................................................................. 15
Link ...................................................................................... 16
Connecting to the network ................................................... 16
4.0 Installation................................................................................. 18
4.1 The Model 1001R14 Rack Chassis............................................ 18
The Rack Power Supply............................................................. 18
Powering up your 1001R14 rack................................................ 19
4.2 Installing the Model 2073RC into the chassis............................. 19
4.3 Connecting to a DTE device....................................................... 19
4.4 Connecting to a DCE device....................................................... 19
4.5 Connecting to a G.703/64 kbps Network.................................... 20
5.0 Operation................................................................................... 21
5.1 LED Descriptions........................................................................ 21
Loop (V.54 & Telco) Diagnostics................................................ 22
Operating Local Loopback (LLB)................................................ 22
Operating Remote Digital Loopback (RDL)................................ 23
Bit Error Rate (V.52) Diagnostics ............................................... 23
A Model 2073RC Specifications.................................................. 24
A.1 Transmission Format ................................................................... 24
2
A.2 Transmission Line ....................................................................... 24
A.3 Clocking ...................................................................................... 24
A.4 Interface Modules ....................................................................... 24
A.5 Line Rates ................................................................................... 24
A.6 DTE Rates ................................................................................... 24
A.7 Diagnostics ................................................................................. 24
A.8 LED Status Indicators ................................................................. 24
A.9 Connectors ................................................................................. 24
A.10 Temperature Range .................................................................... 24
A.11 Altitude ........................................................................................ 24
A.12 Humidity ...................................................................................... 24
A.13 Dimensions ................................................................................. 24
A.14 Weight ......................................................................................... 24
B Interface Pin Assignment......................................................... 25
3

1.0 WARRANTY INFORMATION

Patton Electronics
warrants all Model 2073RC 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 this product fails or does not performs as warranted, y our sole recourse shall be repair or replacement as described above. Under no condition shall
Patton Electronics
be liable for any damages incurred b y the use of this product. These damages include, but are not limited to , the f ollo wing: 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 acceptance 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.

1.1 RADIO AND TV INTERFERENCE

The Model 2073RC generates and uses radio frequency energy, and if not installed and used properly-that is, in strict accordance with the man­ufacturer’s instructions-may cause interference to radio and television reception. The Model 2073RC has been tested and found to comply with the limits for a Class A computing device in accordance with specifica­tions in Subpart B of Part 15 of FCC rules, which are designed to provide reasonable protection from such interference in a commercial installa­tion. However, there is no guarantee that interference will not occur in a particular installation. If the Model 2073RC does cause interference to radio or television reception, which can be determined by disconnecting the unit, the user is encouraged to try to correct the interference by one or more of the following measures: moving the computing equipment away from the receiver, re-orienting the receiving antenna and/or plug­ging the receiving equipment into a different AC outlet (such that the computing equipment and receiver are on different branches).

1.2 CE NOTICE

The CE symbol on your Patton Electronics equipment indicates that it is in compliance with the Electromagnetic Compatibility (EMC) directive and the Low Voltage Directive (LVD) of the European Union (EU). A Cer­tificate of Compliance is available by contacting Technical Support.
4

1.3 SERVICE

All warranty and non-warranty repairs must be returned freight prepaid and insured to Patton Electronics. All returns must have a Return Materi­als Authorization number on the outside of the shipping container. This number may be obtained from Patton Electronics Technical Services at:
• Tel: +1
• Email:
• URL:
(301) 975-1007
support@patton.com
http://www.patton.com
Note
Packages received without an RMA number will not be accepted.
Patton Electronics' technical staff is also available to answer any ques­tions that might arise concerning the installation or use of your Model 2073RC. Technical Service hours:
UTC-5), Monday through Friday
8 AM to 5 PM EST (8:00 to 17:00
.
5

2.0 GENERAL INFORMATION

Thank you for purchasing this P atton Electronics product. This product has been thoroughly inspected and tested and is warranted for one y ear for parts and labor. If questions arise during installation or use of this product, contact Patton Electronics Technical Support at

2.1 FEATURES

Bi-directionally converts X.21,V.35 or 10 Base-T to co-directional G.703
LED indicators monitor Data, Network, and Diagnostic signals
Internal, external (V.35 only), or network clocking options
Test Mode controlled by switch, or by local DTE (V.35 version only)
Complies with CCITT/ITU G.823 Jitter Control Specifications
Built-in surge protection and transformer isolation
Point-to-point distance up to 5250 ft (1600m) on 24 AWG twisted pair
120-ohm (twisted pair) network termination

2.2 DESCRIPTION

The Patton Model 2073RC interface converter allow a synchronous V.35, X.21 or ethernet device to communicate bi-directionally over the G.703 co­directional PCM network. Supporting internal, external DTE timing or G.703 network generated timing, the Model 2073RC is perfect for netw ork­ing applications that require speeds of 64 kbps. The modular rear cards style of interchangeable interface modules f or the 2073RC allow various physical and electrical interfaces to connect to the 64K synchronous G.703 network.
+1 (301) 975-1007
.
A 120-ohm twisted pair telephone port provides the interface for the G.703 network. Additionally, 75-ohm terminations can be made using the Patton Model 460 (G.703 balun).
Diagnostics include Local Loopback, V.54 RDL testing, and 511/51E built­in BER patterns. Synchronous clock jitter is atten uated in accordance with the G.823.
6

3.0 CONFIGURATION

The 2073RC features configuration capability via hardware DIP s witches . This section describes all possible hardware switch configuration. Figure 1 shows the location of the DIP switches on the top of the printed circuit board
Figure 1.
Model 2073RC top view showing location of DIP switches
Figure 2 shows the orientation of the DIP switches with respect to ON/ OFF positions.
ON
OFF
Figure 2.
ON
12345678
Close-up of DIP switches showing ON/OFF positions
7
DIP SW3-8 DIP SW3-7 DIP SW3-6
DIP SW3-5
DIP SW3-4
DIP SW3-3 DIP SW3-2
DIP SW3-1
Note
Not Used Not Used
ON = DTE TM Lines Disabled
OFF = DTE TM Lines Enabled ON = FP TM Switches Disabled
OFF = FP TM Switches Enabled ON = V54 RX Disabled
OFF = V54 RX Lines Enabled Not Used
SW3-2
OFF
OFF
ON ON
0 = ON, 1 = OFF
SW3-1
OFF
ON
OFF
ON
= Internal (Generated by 2073RC)
= External (From DTE) = Network (Normal) = Network (Campus)
Note Boldface
type
indicates a factory-default setting.

3.1 CONFIGURING THE FRONT INTERFACE CARD

Switches SW3-2 and SW3-1: Clocking Mode

Use Switch SW3 to set the system clock for the Model 2073RC. When using two Model 2073RC together in a point-to-point application as short range modems, set one unit for either Internal or External transmit clock and the other unit to Network clock. When connecting directly to the G.703 network, set the unit to Network clock.
SW3-2 SW3-1 Clocking Description
OFF OFF OFF ON
ON OFF ON ON
Internal (Generated by 2073RC) External (From DTE) Network (Normal) Network (Campus)
8

Switches SW3-5: Front panel switch enabled/disabled

Use Switch SW3-5 to enable or disable the Model 2073RC Test Mode (Local Loop, Remote Digital Loop, and 511/511E patterns).
ON Front Panel Test Mode Switches Disabled
OFF Front panel Test Mode Switches Enabled

Switch SW3-6: Response to DTE Request for Local and Remote Loop

Use Switch SW3-6 to enable the Model 2073RC to enter Local Loopback mode when pin interface (V.35 only) is raised. In the On position, the Local Loopback may only be enabled manually by Switch SW3-6.
SW3-6 Activation Description
On Disabled Model 2073RC ignores DTE requests to enter
Local Loopback
Off Enabled Model 2073RC enters Local Loopback when the
appropriate interface pin is raised (see appendix for interf ace pinout)

Switch SW3-4 Response to Remote digital (RDL) Loopback

Use Switch SW3-4 to enable or disable response to Remote digital Loop­back by the local 2073RC when a RDL request is sent by a remote device.
SW3-4 Description
ON RDL Response Disabled
OFF RDL Response Enabled
Switch SW3-3 Terminal (DTE) data sampled using the 2073RC Transmit clock or External Clock (provided by V.35 DTEs only)
Use Switch SW3-3 to sample data from DTE using the 2073RC Transmit clock (TC) or External Clock (XC))—normally Transmit clock (from 2073RC) is used.
ON TD Sampled with XC Source, OFF TD Sampled with TC Source
9
Loading...
+ 19 hidden pages