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
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.
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).
ONFront Panel Test Mode Switches Disabled
OFFFront 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.
SW3-6Activation Description
OnDisabled 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.
SW3-4Description
ONRDL Response Disabled
OFFRDL 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.
ONTD Sampled with XC Source,
OFFTD Sampled with TC Source
9
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