Electrical Circuit Requirements; Site Cabling Guidelines - Cisco ASR 903 Installation Manual

Electrical Circuit Requirements

Hardware component(s)
A900-IMA8Z (8-port 10 Gigabit Ethernet Interface Module)
A900-IMA1C (1-port 100 Gigabit Ethernet Interface Module)
A900-IMA2F (2-port 40 Gigabit Ethernet QSFP Interface Module)
A900-IMASER14A/S (14-port Serial Interface Module)
A900-IMA6EM (6-port E & M Interface Module)
A900-IMA4C3794 (4-port C37.94 Interface Module)
A900-IMA8CS1Z-M (8/16-port 1 Gigabit Ethernet (SFP/SFP) + 1-port 10
Gigabit Ethernet (SFP+) / 2-port 1 Gigabit Ethernet (CSFP) Interface Module)
A900-IMA3G-IMSG (1-port OC-48/STM-16 or 4-port OC-12/OC-3 /
STM-1/STM-4 + 12-port T1/E1 + 4-Port T3/E3 CEM Interface Module)
Electrical Circuit Requirements
Each Cisco ASR 903 Router requires a dedicated electrical circuit. If you equip it with dual power feeds,
provide a separate circuit for each power supply to avoid compromising the power redundancy feature.
The Cisco ASR 903 Routers can be powered by a DC source or an AC source. Ensure that equipment grounding
is present and observe the power strip ratings. Make sure that the total ampere rating of all products plugged
into the power strip does not exceed 80% of the rating.
For more information about the Cisco ASR 903 Router power supply, see

Site Cabling Guidelines

This section contains guidelines for wiring and cabling at your site. When preparing your site for network
connections to the Cisco ASR 903 Router, consider the type of cable required for each component, and the
cable limitations. Consider the distance limitations for signaling, electromagnetic interference (EMI), and
connector compatibility. Possible cable types are fiber, thick or thin coaxial, foil twisted-pair, or unshielded
twisted-pair cabling.
Also consider any additional interface equipment you need, such as transceivers, hubs, switches, modems,
channel service units (CSU), or data service units (DSU).
Before you begin, read these important notes about cabling:
• The T1/E1 interface module for the Cisco ASR 903 Router uses a high-density connector that requires
• Shielded cables must be used to connect to the RS-48 alarm connector on the fan tray in order to comply
Before you install the Cisco ASR 903 Router, have all the additional external equipment and cables on hand.
For information about ordering, contact a Cisco customer service representative.
Cisco ASR 903 and ASR 903U Aggregation Services Router Hardware Installation Guide
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the use of a T1/E1 interface cable and a customer-provided patch panel. For more information,
seeConnecting T1/E1 cables.
with FCC/EN55022/CISPR22 Class A emissions requirements. For information about the fan tray alarm
port, see Connecting the Fan Tray Alarm
Power Supply
Port.
Preparing for Installation
Maximum power draw value
60 W
60 W
60 W
20 W
20 W
14 W
54 W
55 W
Features.