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Patton Electronics warrants all Model 2703RC-A 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 shipment.

This warranty is limited to defects in workmanship or materials,

and does not cover customer damage, abuse or unauthorized modifi-
cation.  If this product fails or does not 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 consequen-
tial 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. 

1.1  RADIO AND TV INTERFERENCE

The Model 2703RC-A 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 2703RC-A has been tested and found
to comply with the limits for a Class A computing device in accordance
with the specifications in Subpart J 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 interfer-
ence will not occur in a particular installation.  If the Model 2703RC-A
does cause interference to radio or television reception, which can be
determined by turning the power off or removing the card, the user is
encouraged to try to correct the interference by one or more of the fol-
lowing measures:  moving the computing equipment away from the
receiver, re-orienting the receiving antenna and/or plugging the receiv-
ing equipment into a different AC outlet (such that the computing
equipment and receiver are on different branches).  In the event the
user detects intermittent or continuous product malfunction due to
nearby high power transmitting radio frequency equipment, the user is
strongly advised to take the following steps: use only data cables with
an external outer shield bonded to a metal or metalized connector;
and, Configure the rear card as shown in section 3.2 of this manual.

1

1.2  CE NOTICE AND TELECOMMUNICATIONS APPROVALS

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 Union European
(EU).  A Certificate of Compliance is available by contacting Technical
Support.  

The Model 1000RCM703120 and 1000RCM70375 rear cards are

in compliance with the Telecommunication technical requirements
CRT=12; 2.048 Mbps digital unstructured leased line (D2048U) attach-
ment requirements for terminal equipment interface

1.3  SERVICE

All warranty and nonwarranty repairs must be returned freight pre-

paid and insured to Patton Electronics.  All returns must have a Return
Materials Authorization number on the outside of the shipping contain-
er. This number may be obtained from Patton Electronics Technical
Support: (301) 975-1007http://www.patton.com; or, support@pat-
ton.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 2703RC-A.  Technical Service hours:  8AM to 5PM EST,
Monday through Friday.

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Summary of Contents for 2703RC-A

Page 1: ...A AL L MODEL 2703RC A MegaLink 1 G 703 E1 Digital Modem Rack Mount Card SALES OFFICE 301 975 1000 TECHNICAL SUPPORT 301 975 1007 http www patton com Part 07M2703RC A A Doc 031122UA Revised 2 4 99 An I...

Page 2: ...mined by turning the power off or removing the card the user is encouraged to try to correct the interference by one or more of the fol lowing measures moving the computing equipment away from the rec...

Page 3: ...erface to be adapted to X 21 using a special DTE cable available from Patton The Model 2703RC A is designed to mount in Patton s 2U high 16 slot rack chassis or 2 4 8 slot Cluster Boxes These have a s...

Page 4: ...o a standalone Model 2703 Firmware Revision B or older unit at 256 512 and 1024 kbps The firmware version of the standalone 2703 is printed on the bottom side of the unit Switches S2 and S3 Rate Adapt...

Page 5: ...rked THIS SIDE UP FOR V 35 on one side of the board other side 4 Plug the interface board into the 20 pin header socket with the appropriate interface pointed UP and with the arrow pointing toward the...

Page 6: ...RX Pin 2 to GND Strap Off LK2 RX Shield Pin 3 to GND Strap Off LK3 TX Pin 4 to GND Strap Off LK4 Clock Synchronization Strap Off LK5 DTE SGND to FGND Strap On LK4 Clock Synchronization EIA 530 V 35 vs...

Page 7: ...viceable parts in the power supply section of the Model 2703RC A Voltage setting changes and fuse replacement should only be per formed by qualified service personnel Contact Patton Electronics Techni...

Page 8: ...lmost all the way into the chassis 4 Push the front card gently into the card edge receptacle of the rear card It should click into place 5 Secure the front card using the thumb screws NOTE Since the...

Page 9: ...ce Any coaxial cable connected to the dual coax rear card must incorporate an outer shield that has no less than 90 coverage Notice Any terminal cable connected to the Model 2703RC must be shielded ca...

Page 10: ...the unit C Perform a BER bit error rate test on each unit If the BER test equipment indicates no faults but the data terminal indi cates a fault follow the manufacturer s checkout procedures for the d...

Page 11: ...try Module 1000RPSM 48A 48V Front Power Supply Module 1000RPEM V 120 240V CE Compliant Rear Power Entry Module 1000RPSM V 120 240V CE Compliant Front Power Supply Module 1180RC DB V 35 Interface Drive...

Page 12: ...y A DCE 7 SGND Signal Ground 8 CD Carrier Detect A DCE 9 RC Receiver Clock B DCE 10 CD Carrier Detect B DCE 11 12 TC Transmit Clock B DCE 13 CTS Clear to Send B DCE 14 TD Transmit Data B DTE 15 TC Tra...

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