User manual
Table Of Contents
- Cisco ASR 901 10G Series Aggregation Services Router Hardware Installation Guide
- Contents
- About This Guide
- Document Revision History
- Objectives
- Audience
- Organization
- Conventions
- Safety Warnings
- Related Documentation
- Obtaining Documentation, Obtaining Support, and Security Guidelines
- Hardware Description
- Power Supply
- Environmental Monitoring Temperature Sensor
- System Specifications
- Router Interface Numbering
- Regulatory Compliance
- Safety Guidelines
- Prerequisites
- Site Planning
- Console Port Considerations
- Network Modules
- Mounting the Cisco ASR 901 10G Router
- Rack-Mounting Configuration Guidelines
- Mounting the Cisco ASR 901 10G Router in a Rack
- Step 1 Locate the equipment rack position where you plan to install the router.
- Step 2 Verify that there are no obstructions and ensure that the equipment rack is stabilized.
- Step 3 Determine whether you are mounting the router on a 19-inch, 23-inch, or an ETSI rack. Figure 3-1 shows the types of mounting brackets.
- Step 4 Determine the mounting position (Front-, Mid-, or Rear-mounting) of the router. (For 19-inch racks, see Attaching Brackets for 19-Inch Racks, page 3-4. For 23-inch racks, see Attaching Brackets for 23-Inch Racks, page 3-5. For ETSI racks, see ...
- Step 5 Locate the mounting holes of the router.
- Step 6 Align the rack-mounting bracket with the router and position with the four #6-32 x 0.25-inch screws (provided).
- Step 7 Insert the screws (four places) and tighten using a Number 2 Phillips screwdriver (each side).
- Step 8 Position the router in the equipment rack lining up the bracket holes on the router with the holes on the rack and secure with four #6-32 x 0.25-inch mounting screws (two on each side).
- Step 9 Tighten the screws using a 1/4-inch flat-blade screwdriver (each side).
- Wall-Mounting
- Attaching Brackets for Wall-Mounting
- Step 1 Locate the mounting holes of the router.
- Step 2 Align the wall-mounting bracket with the router and position with the four Number 6-32 x 0.25-inch screws (provided). See Figure 3-5.
- Step 3 Insert the screws (in four places) and tighten using a Number 2 Phillips screwdriver (on each side).
- Step 4 Position the router in the equipment rack lining up the bracket holes on the router with the holes on the rack and secure with four Number 6-32 x 0.25-inch mounting screws (two on each side).
- Step 5 Tighten the screws using a 1/4-inch flat-blade screwdriver (on each side).
- Mounting the Router on a Wall
- Step 1 Locate the position where you plan to install the router.
- Step 2 Ensure that there are no obstructions.
- Step 3 Position the router with the ports facing up as in Figure 3-6, or down and align the bracket holes with the holes on the wall and secure with four Number 6-32 x 0.25-inch mounting screws (two on each side).
- Step 4 Tighten the screws using a 1/4-inch flat-blade screwdriver (each side).
- Attaching Brackets for Wall-Mounting
- Connecting the Chassis Ground and Power
- Grounding the Cisco ASR 901 10G Router
- Figure 3-7 Grounding Point
- Step 1 In the accessory kit, locate the 2-hole lug, 2 pan-head Phillips head screws used to attach the lug to the router, and the 6-AWG ground wire. (Lug, screws, and wire are part number 32-0629-01.)
- Step 2 Set the parts aside.
- Step 3 If your ground wire is insulated, use a wire-stripping tool to strip the ground wire to 0.5 inch ± 0.02 inch (12.7 mm ±0.5 mm) for the ring terminal (Figure 3-8).
- Step 4 Slide the open end of the ground lug over the exposed area of the ground wire.
- Step 5 Using a crimping tool (as specified by the ground lug manufacturer), crimp the ground lug to the ground wire (Figure 3-9).
- Step 6 Use a Phillips head screwdriver to attach the ground lug and wire assembly to the front of the router with the two screws from the accessory kit.
- Step 7 Connect the other end of the ground wire to a suitable grounding point at your site.
- Power Connection Compliance
- Wiring the DC-Input Power Source
- Step 1 Switch off the DC power source at the circuit breaker, and place the circuit breaker in the Off position.
- Step 2 Locate the two 3-pin terminal blocks (part number 27-1892-01). The terminal blocks are located in the accessory kit (part number 53-3438-01) shipped with the Cisco ASR 901 10G router.
- Step 3 Plug the 3-pin terminal block into the power connector located on the front side of the router. See Figure 3-10
- Step 4 Repeat Step 3 to attach the other terminal block.
- Step 5 Connect the other end of the power cord to the site DC power source.
- Installing the DC Power Cord Retainer
- Step 1 In the accessory kit, locate the two cable holders and the two pan-head Phillips head screws used to attach the cable holders to the router. (part number of cable holder is 52-0685-01.)
- Step 2 Set the parts aside.
- Step 3 Insert the DC power cord through the cable holder. See Figure 3-11. Repeat this step for the second DC power cord.
- Step 4 Use a Phillips head screwdriver to attach the cable holders to the front of the router with the two screws from the accessory kit. See Figure 3-12.
- Installing the AC Power Cord Retainer
- Step 1 Choose the sleeve size of the power cord retainer based on the thickness of the cord. The smaller sleeve can be snapped off and used for thin cords. See Figure 3-16.
- Step 2 Slide the retainer around the AC power cord, and pass it around the lanced loop on the router. See Figure 3-13.
- Step 3 Slide the retainer through the first latch. See Figure 3-14.
- Step 4 Slide the retainer through the other latches to lock it. See Figure 3-15.
- Step 5 (Optional) Use the small sleeve for thin power cords. Use the small sleeve to provide greater stability for thin cords. Detach the sleeve, and slide it over the power cord. See Figure 3-16.
- Step 6 Secure the AC power cord by pressing the retainer. See Figure 3-17.
- Installing and Removing SFP Modules
- Installing SFP Modules
- Figure 3-18 SFP Module with a Bale-Clasp Latch
- Step 1 Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.
- Step 2 If the SFP module that you are using has the markings, use them to identify the top side of the module.
- Step 3 Align the SFP module in front of the slot opening.
- Step 4 Insert the SFP module into the slot until you feel the connector on the module snap into place in the rear of the slot (see Figure 3-19).
- Step 5 For fiber-optic SFP modules, remove the dust plugs from the optical ports, and store them for later use.
- Step 6 Insert the cable connector into the SFP module:
- Removing SFP Modules
- Step 1 Attach an ESD-preventive wrist strap to your wrist and to a bare metal surface on the chassis.
- Step 2 Disconnect the cable from the SFP module, and insert a dust plug into the cable end.
- Step 3 Unlock and remove the SFP module, as shown in Figure 3-20.
- Step 4 Grasp the SFP module between your thumb and index finger, and carefully remove it from the module slot.
- Step 5 For fiber-optic SFP modules, insert a dust plug into the optical ports of the SFP module to keep the optical interfaces clean.
- Step 6 Place the removed SFP module in an antistatic bag or any other protective casing.
- Installing SFP Modules
- Connecting Cables
- Connecting the Console Port
- Types of RJ-45 Cables
- Console Port
- Step 1 Connect the terminal using an RJ-45 rollover cable and an RJ-45-to-DB-25 or RJ-45-to-DB-9 adapter (labeled TERMINAL) to the console port. For cable pinouts, see the “Console Port Signals and Pinouts” section on page B-4.
- Step 2 Configure the terminal or terminal emulation software for 9600 baud, 8 data bits, no parity, and 2 stop bits.
- Connecting the Network Cables
- Connecting Gigabit Ethernet Interface Cables
- Connecting T1 and E1 Interface Cables
- Step 1 Ensure the router is powered off.
- Step 2 Connect one end of the cable to the T1 or E1 (RJ-48C) port. Use a T1/E1 cable.
- Step 3 Connect the other end to the BTS patch or demarcation panel at your site.
- Step 4 Turn on power to the router (see “Powering on the Router” section on page 3-24 for more details).
- Connecting SFP Cables
- Step 1 Ensure the router is powered off.
- Step 2 Insert the SFP module patch cable into the slot until you feel the connector on the cable snap into place in the rear of the slot.
- Step 3 Connect the other end to the patch or demarcation panel at your site.
- Step 4 Turn on power to the router (see “Powering on the Router” section on page 3-24 for more details).
- Connecting Cables to the BITS Interface
- Connecting GPS Cables
- Connecting to Alarm Port
- Connecting to the Management Ethernet Port
- Dressing Router Cables
- Connecting the Console Port
- Powering on the Router
- Problem Solving
- Reading the LEDs
- Gigabit Ethernet Connector Pinouts
- SFP and SFP+ Port Pinouts and Cable Specifications
- T1/E1 Port Pinouts
- Console Port Signals and Pinouts
- BITS Port Pinouts
- Time of Day Pinouts
- GPS Port Pinouts
- Alarm Port Pinouts
- Management Ethernet Port Pinouts
- Auxiliary Port
- Index

2-2
Cisco ASR 901 10G Series Aggregation Services Router Hardware Installation Guide
OL-28105-02
Chapter 2 Preparing to Install the Router
Safety Guidelines
• When working under conditions hazardous to your eyes, wear safety glasses.
Safety with Electricity
Warning
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Statement 1003
Warning
This unit is intended for installation in restricted access areas. A restricted access area can be
accessed only through the use of a special tool, lock and key, or other means of security.
Statement 1017
Warning
To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network
voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some
LAN and WAN ports both use RJ-45 connectors.
Statement 1021
Warning
Before working on equipment that is connected to power lines, remove jewelry (including rings,
necklaces, and watches). Metal objects will heat up when connected to power and ground and can
cause serious burns or weld the metal object to the terminals.
Statement 43
Warning
Before working on a chassis or working near power supplies, unplug the power cord on AC units;
disconnect the power at the circuit breaker on DC units.
Statement 12
Warning
During periods of lightning activity, do not work on the system or connect or disconnect cables.
Statement 1001
Warning
There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only with
the same or equivalent type recommended by the manufacturer. Dispose of used batteries according
to the manufacturer’s instructions.
Statement 1015
Warning
This unit might have more than one power supply connection. All connections must be removed to
de-energize the unit.
Statement 1028
When working on electrical equipment, follow these guidelines:
• Locate the room’s emergency power switch. If an electrical accident occurs, you can quickly switch
off the power.
• Before working on the system, switch off the DC main circuit breaker and disconnect the power
terminal block cable.
• Disconnect all power before performing the following:










