Cisco 1 Port T3/E3 NM NM-1T3/E3 데이터 시트
제품 코드
NM-1T3/E3
Data Sheet
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Key Benefits
The combination of T3 and E3 options in a single network module provides the following key customer benefits:
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Physical space savings: Eliminates the need for external DSU device, saving valuable rack space
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Simplified management: Eliminates the need for two separate monitoring tools
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Software-configurable T3/E3: Provides the flexibility to deploy a single module worldwide
Key Features
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One-port T3 with DSU or E3 with DSU network module
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T3/E3-specific features for monitoring, bit error rate tester (BERT), Management Information Bases (MIBs),
alarms, and more
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Ability to independently or simultaneously enable scrambling and subrate in each DSU mode; support for the
following DSU vendors' algorithms: Digital Link, Kentrox, Larscom, Verilink, Adtran.
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Support for the serial encapsulation protocols: Frame Relay, Point-to-Point Protocol (PPP), High-Level Data
Link Control (HDLC)
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16-bit cyclic redundancy check (CRC)
Key Management Features
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Line and payload loopback capabilities
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DS3 remote-line loopback (via Far End Alarm and Control [FEAC] codes per American National Standards
Institute [ANSI] T1.107a)
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Response to embedded loopback commands
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Insertion of loopback commands into transmitted signal
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Programmable pseudorandom pattern up to 32 bits long, including 223, 220, 215, 1s, 0s, alt-0-1
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32-bit error count and bit-count registers
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Alarm detection-Alarm indication signal (AIS), remote alarm, far-end block error (FEBE), out of frame (OOF)
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Onboard processor for Maintenance Data Link (MDL)
T3/E3 Applications and Positioning
The Cisco T3/E3 Network Module provides the performance requirements to deploy advanced, voice, video and data
applications over the WAN and supports key IOS features and services such as QoS, NBAR, IPSec, FW, IDS, NAT
and NetFlow. The Cisco 3945E, for instance, is the highest-performing platform for the branch office and is
recommended for deploying concurrent services at full T3/E3 line rates. See Table 1 below for performance
recommendation for positioning of the NM-1T3/E3 in the branch office.
Table 1.
Cisco T3/E3 Network Module Branch Office Positioning and Platform Support Matrix
Supported Platform
Recommended Type of Service
Maximum T3/E3
Supported
Supported
Minimum Cisco IOS Software Version
(IP Base Feature Set or Above)
(IP Base Feature Set or Above)
Cisco 2650 and 2651XM
Subrate T3/E3
1
12.2(15)T
Cisco 2691
Subrate T3/E3
1
12.2(15)T
Cisco 2800
Subrate T3/E3 with concurrent services
1
12.3(8)T
Cisco 2951
Full rate T3/E3 with concurrent services
1
15.0(1)M
Cisco 3661 and 3662
Sub and full-rate T3/E3 with limited services
1
12.2(15)T
Cisco 3725/3745
Full-rate T3/E3 with no services
1
12.2(15)T
Cisco 3825
Full rate T3/E3 with no services
1
12.3(8)T