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Cisco 2600/2600XM AND 3600 SERIES 8 PORT T1 ATM MODULE WITH IMA Specification Guide

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Systems, Inc. in the U.S. and certain other countries. All other trademarks mentioned in this document are the property of their respective owners. The use of the word partner does not imply a partnership
relationship between Cisco and any of its resellers. (9906R)
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Corporate Headquarters
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
http://www.cisco.com
Tel: 408 526-4000
800 553-NETS (6387)
Fax: 408 526-4100
European Headquarters
Cisco Systems Europe s.a.r.l.
Parc Evolic, Batiment L1/L2
16 Avenue du Quebec
Villebon, BP 706
91961 Courtaboeuf Cedex
France
http://www-europe.cisco.com
Tel: 33 1 69 18 61 00
Fax: 33 1 69 28 83 26
Americas
Headquarters
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
http://www.cisco.com
Tel: 408 526-7660
Fax: 408 527-0883
Asia Headquarters
Nihon Cisco Systems K.K.
Fuji Building, 9th Floor
3-2-3 Marunouchi
Chiyoda-ku, Tokyo 100
Japan
http://www.cisco.com
Tel: 81 3 5219 6250
Fax: 81 3 5219 6001
Cable Pinouts and Specifications
Male RJ-45 connections are standard for the T1 and E1
versions. The T1/E1 ATM network modules support either
75 ohm (E1 coax), 100 ohm (T1 twisted pair), and 120 ohm
(E1 twisted pair) connections. The E1 network modules are
designed to transmit and receive 2.048-Mbps signals through
both 120-ohm cable and 75-ohm coax cable. A common
RJ-45 connector is used for the E1 120-ohm, 75-ohm, and
T1 100-ohm.
Table 5 T1 ATM Male RJ-45 Connector Pinouts
Table 6 E1 ATM Male RJ-45 – 75-ohm BNC Connector Pinouts
Note: Jumper on the E1 ATM network module must be set to
75 ohm mode.
Table 7 Custom Cable Pinout Description
Pin
Signal
1
RX Tip
2
RX Ring
3
Jumpered ground
4
TX tip
5
TX ring
6
Jumpered ground
7
Unused
8
Unused
Pin
Signal
1
RX signal
2
Tied to RX shield (pin 3)
3
RX shield
4
TX signal
5
Tied to TX shield
6
TX shield
7
Unused
8
Unused
T1/E1 Board Cable End
Network End
RJ-45
DB-15
Null Modem
DB-15
BNC
Twinax
 Pin
Signal
 Pin
Pin
Signal
Signal
1
RX Tip
3
1
RX Tip
RX Tip
2
RX Ring
11
9
RX Shield
RX Ring
3
RX Shield
4
2
RX Shield
RX Shield
4
TX Tip
1
3
TX Tip
TX Tip
5
TX Ring
9
11
TX Shield
TX Ring
6
TX Shield
2
4
TX Shield
TX Shield
Pin
Signal