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Chapter 1 Overview of the Cisco MWR 1941-DC Router Primary Uses of the MWR 1941-DC Router The Cisco MWR 1941-DC provides connectivity options at the cell site through support of Cisco network modules and WAN interface cards. Figure 1-2 shows an example of the placement of and connections for the MWR 1941-DC in a Cell Site DCN solution. Figure 1-2 MWR 1941-DC in an Cell Site DCN Solution BTS Node B T1/E1 BSC/RNC Cisco MWR 1941-DC RS-232 Voice circuits T1/E1 DCN traffic MWR 1941-DC, 7200, 1/0 DACS 10/100 Base-T Drop and Insert Network Operations Center T1/E1 10/100 Base-T RF monitoring Unit Microwave Equipment Tower Light Controller Battery System Email access for trouble tickets OSS network access Database access for inventory and technical knowledge Cisco IP SoftPhone or FXO/FXS VoIP for tech and support services Web camera for Security Local data archival 101070 In the Cell Site DCN solution, the MWR 1941-DC provides a channelized T1/E1 interface to the BTS and routes management and control traffic via one DS0 from a T1. In addition the MWR 1941-DC router supports Asynchronous and Ethernet interfaces to monitored and controlled devices at the cell site. 78-15827-06B0 Cisco MWR 1941-DC Mobile Wireless Edge Router Hardware Installation Guide 1-3

Section	Page
Cisco MWR 1941-DC Mobile Wireless Edge Router Hardware Installation Guide	1
Contents	3
About This Guide	7
Objectives	7
Audience	7
Organization	8
Conventions	8
Related Documentation	10
Obtaining Documentation	11
Cisco.com	11
Documentation DVD	11
Ordering Documentation	12
Documentation Feedback	12
Cisco Product Security Overview	12
Reporting Security Problems in Cisco Products	13
Obtaining Technical Assistance	13
Cisco Technical Support Website	14
Submitting a Service Request	14
Definitions of Service Request Severity	15
Obtaining Additional Publications and Information	15
1	17
Overview of the Cisco MWR 1941-DC Router	17
Primary Uses of the MWR 1941-DC Router	17
IP-RAN Solution Implementation	18
Figure1-1 MWR 1941-DC in an IP-RAN Solution	18
Cell Site DCN Solution Implementation	18
Figure1-2 MWR 1941-DC in an Cell Site DCN Solution	19
Hardware Features	20
Figure1-3 Front Panel of the Cisco MWR 1941-DC Router	20
Figure1-4 Back Panel of the Cisco MWR 1941-DC Router	20
Fixed Interfaces	21
Voice/WAN Interface Cards	21
IVWIC-2MFT-T1/E1-DIR	21
WIC-2A/S	22
Cisco Network Modules	23
Compact Flash	23
Overview of MWR 1941-DC Power Supply	24
Table1-1 Cisco MWR 1941-DC Power Supply Specifications	24
Table1-2 Power Supply Connectors Pinout—+27 VDC Application	24
Table1-3 Power Supply Connectors Pinout—-48 VDC Application	24
Environmental Monitoring Temperature Sensor	25
System Specifications	25
Table1-4 Cisco MWR 1941-DC Router System Specifications	25
Cisco MWR 1941-DC Router Interface Numbering	25
Figure1-5 Cisco MWR 1941-DC Router Port Numbers	26
Slot and Port Numbering	26
Regulatory Compliance	27
2	29
Preparing to Install the Router	29
Safety Recommendations	29
Safety with Electricity	30
Preventing Electrostatic Discharge Damage	31
General Site Requirements	31
Required Tools and Equipment for Installation and Maintenance	32
Inspecting the Router	33
Creating a Site Log	33
Installation Checklist	34
Console and Auxiliary Port Considerations	34
Console Port Connections	35
Auxiliary Port Connections	35
Preparing to Connect to a Network	36
Ethernet Connections	36
Serial Connections	37
Configuring Serial Connections	37
Serial DTE or DCE Devices	37
Table2-1 Typical DTE and DCE Devices	37
Signaling Standards Supported	38
Distance Limitations	38
Table2-2 Serial Signal Transmission Speeds and Distances	38
Asynchronous/Synchronous Serial Module Baud Rates	39
3	41
Installing the Router	41
Installing Network Modules and Interface Cards	41
For network modules:	41
For VWICs:	41
For WICs:	42
Rack Mounting the Chassis	42
Attaching the Brackets	42
Figure3-1 Attaching the Bracket	43
Installing the Router in the Rack	43
Connecting the Console Terminal and Modem	43
Identifying a Rollover Cable	43
Figure3-2 Identifying a Rollover Cable	44
Console Port	44
Step 1 Connect the terminal using an RJ-45 rollover cable and an RJ-45-to-DB-25 or RJ-45-to-DB-9 ...	44
Step 2 Configure your terminal or terminal emulation software for 9600 baud, 8 data bits, no pari...	44
Auxiliary Port	45
Step 1 Connect a modem to the auxiliary port using an RJ-45 rollover cable with an RJ-45-to-DB-25...	45
Step 2 Make sure that your modem and the router auxiliary port are configured for the same transm...	45
Connecting the Network Cables	45
Connecting the Fixed FE Interface Cables	45
Step 1 Confirm that the router is turned off.	45
Step 2 Connect one end of the cable to the FE port on the router.	45
Step 3 Connect the other end to the BTS patch or demarcation panel at your site.	45
Figure3-3 RJ-45 Port and Plug	45
Table3-1 RJ-45 Pinout	46
Connecting the VWIC Interface Cables	46
Step 1 Confirm that both routers are turned off.	46
Step 2 Connect the end of one of the Y-cable stubs to the T1 or E1 port on the card on the first ...	46
Step 3 Connect the end of the other Y-cable stub to the T1 or E1 port (using the same type of por...	46
Step 4 Connect the other end of the Y-cable to the BTS patch or demarcation panel at your site.	46
Step 5 Turn on power to the routers.	46
Step 6 Check that the CD LEDs goes on, which means that the cards’ internal CSU/DSU is communicat...	46
Step 1 Confirm that the router is turned off.	46
Step 2 Connect one end of the cable to the T1 or E1 port on the card.	46
Step 3 Connect the other end to the BTS patch or demarcation panel at your site.	46
Step 4 Turn on power to the router.	47
Step 5 Check that the CD LED goes on, which means that the card’s internal CSU/DSU is communicati...	47
Figure3-4 RJ-48C Connection	47
Table3-2 RJ-48C Pinout	47
Y-Cable Specifications	47
Connecting the WIC-2A/S Interface Cables	48
Step 1 Power off the MWR 1941-DC router.	49
Step 2 Connect one end of the appropriate serial cable to a DB-60 port on the module, as shown in...	49
Step 3 Connect the other end of the cable to the appropriate type of equipment, as shown in Figur...	49
Step 4 Power on the Cisco MWR 1941-DC router.	49
Step 5 Verify that the CONN LED turns green, indicating that the serial port on the module detect...	49
Figure3-5 Connecting a 2-Port A/S Serial Module (WIC-2A/S)	49
Connecting the Network Module Interface Cables	49
Connecting the MWR 1941-DC Router to a DC-Input Power Supply	50
Required Tools and Equipment	50
Grounding the Router	50
Step 1 Remove the ground-lug screw from the rear panel of the router (shown in Figure1-4 on page...	51
Step 2 Set the screw aside.	51
Step 3 If your ground wire is insulated, use a wire-stripping tool to strip the 10-AWG ground wir...	51
Step 4 Slide the open end of your ground lug over the exposed area of the 10-AWG wire.	51
Step 5 Using a crimping tool (as specified by the ground lug manufacturer), crimp the ground lug ...	51
Step 6 Use the screw to attach the ground lug and wire assembly to the rear panel of the switch.	51
Step 7 Using a ratcheting torque screwdriver, torque the ground-lug screw to 15 1bf-in (or 240 ou...	51
Wiring the DC-Input Power Source	52
Step 1 Turn OFF the DC power source at the circuit breaker and tape the circuit breaker in the OF...	52
Step 2 Plug the black terminal block connector (Phoenix part number 1756272; located in the acces...	52
Step 3 Connect one end of the customer-supplied power cord (18-AWG copper wire) to the DC power s...	52
Step 4 Plug the connector on the power supply cord into the connector that you plugged into the b...	52
Powering On the Router	53
Step 1 Turn on the power supply at the circuit breaker.	53
Step 2 The LED labeled PWR on the front panel should go on.	53
Replacing or Upgrading the CF	53
Step 1 Copy the desired IOS image to a remote TFTP server.	53
Step 2 Power up the MWR 1941-DC router to the ROMMON prompt.	53
Step 3 Boot the router with the existing IOS image.	53
Step 4 Remove the CF cover.	53
Step 5 Remove the current CF from the CF Slot. See Removing a CF Memory Card from an External Slo...	53
Step 6 Place a new CF into the CF Slot.	53
Step 7 Format the CF using the format slot0: command. See Formatting Procedures for CF Memory Car...	53
Step 8 Issue a copy tftp slot0: command to copy the customer-ordered IOS image from the remote TF...	54
Step 9 Reboot the system to the ROMMON prompt.	54
Step 10 Boot the customer-ordered IOS image from the new CF.	54
Step 11 Upon successful booting of the image, replace the CF cover. If the boot process is unsucc...	54
Removing a CF Memory Card from an External Slot	54
Step 1 Locate the CF memory card in its slot in the front panel of the chassis. See Figure1-3 on...	54
Step 2 Move the release button, located next to the slot, to its fully extended position, and pre...	54
Step 3 Carefully pull the card out of the slot.	54
Step 4 Place the removed CF memory card on an antistatic surface or in a static shielding bag.	54
Installing a CF Memory Card in an External Slot	54
Step 1 Locate the CF memory-card slot in the front panel of the chassis.See Figure1-3 on page1-4.	54
Step 2 With the label facing up, insert the connector end of the CF memory card into the slot unt...	54
Step 3 Pull the release button out and move it to the left, to latch the card in the slot.	54
Step 4 Refer to the “Formatting Procedures for CF Memory Cards” section for instructions on forma...	54
Formatting Procedures for CF Memory Cards	55
Formatting CF Memory as a DOS File System	55
File and Directory Procedures	56
Copy Files	56
Display the Contents of a CF Card	56
Display Geometry and Format Information	57
Delete Files from Flash	57
Rename a File in Flash	58
Display File Content	58
Create a New Directory	59
Remove a Directory	59
Enter a Directory and Determine the Current Directory	60
What to Do After Installing the Hardware	60
A	61
Troubleshooting	61
Problem Solving	61
Troubleshooting the Power and Cooling Systems	62
Environmental Reporting Features	62
Troubleshooting Modules, Cables, and Connections	63
Reading the LEDs	64
FigureA-1 Front Panel of the MWR 1941-DC	64
TableA-1 Chassis LEDs	64
TableA-2 Fast Ethernet Connector LEDs	64
TableA-3 VWIC LEDs	65
B	67
Cable Specifications	67
Warning Conventions	68
Console and Auxiliary Port Signals and Pinouts	71
Console Port Signals and Pinouts	71
FigureB-1 Connecting the Console Port to a PC	71
TableB-1 Console Port Signaling and Cabling Using a DB-9 Adapter	71
TableB-2 Console Port Signaling and Cabling Using a DB-25 Adapter	72
Auxiliary Port Signals and Pinouts	72
TableB-3 Auxiliary Port Signaling and Cabling Using a DB-25 Adapter	72
FigureB-2 Identifying a Rollover Cable	73
Ethernet Cable Pinouts	73
Ethernet AUI Cable Pinouts	73
FigureB-3 Ethernet (AUI) Cable Assembly	73
TableB-4 Ethernet (AUI) Pinouts	74
10BaseT Connector Pinouts	74
FigureB-4 10BaseT Connector (RJ-45)	74
TableB-5 10BaseT Connector (RJ-45) Pinouts	75
Fast Ethernet Connector Pinouts	75
FigureB-5 100BaseTX RJ-45 Connector	75
TableB-6 RJ-45 Connector Pinout	75
T1/E1 Trunk and DigitaSl Voice Port Pinouts (RJ-48)	76
FigureB-6 RJ-48-to-RJ-48 T1/E1 Cable Wiring	76
Serial Connection Signals and Pinouts	76
TableB-7 Pinouts for T1/E1 Trunk and Digital Voice Port (RJ-48)	76
Types of Serial Cables	77
Connecting the Card to the Network	77
EIA/TIA-232 Interface	77
EIA/TIA-232 Connections	78
FigureB-7 EIA/TIA-232 Adapter Cable Connectors, Network End	78
EIA/TIA-232 Serial Cable Assembly	78
FigureB-8 EIA/TIA-232 Cable Assembly	78
TableB-8 EIA/TIA-232 DTE Cable Pinout (DB-60 to DB-25)	78
TableB-9 EIA/TIA-232 DCE Cable Pinout (DB-60 to DB-25)	79
EIA/TIA-449 Interface	80
EIA/TIA-449 Connections	80
FigureB-9 EIA/TIA-449 Adapter Cable Connectors, Network End	81
EIA/TIA-449 Serial Cable Assembly	81
FigureB-10 EIA/TIA-449 Serial Cable Assembly	81
TableB-10 EIA/TIA-449 DTE Cable Pinout (DB-60 to DB-37)	81
TableB-11 EIA/TIA-449 DCE Cable Pinout (DB-60 to DB-37)	82
V.35 Interface	83
V.35 Connections	83
FigureB-11 V.35 Adapter Cable Connectors, Network End	83
V.35 Serial Cable Assembly	83
FigureB-12 V.35 Serial Cable Assembly	84
TableB-12 V.35 DTE Cable Pinout (DB-60 to Winchester-Type34-Pin)	84
TableB-13 V.35 DCE Cable Pinout (DB-60 to Winchester-Type 34-Pin)	85
X.21 Interface	86
X.21 Connections	86
FigureB-13 X.21 Adapter Cable Connectors, Network End	86
X.21 Serial Cable Assembly	86
FigureB-14 X.21 Serial Cable Assembly	86
TableB-14 X.21 DTE Cable Pinout (DB-60 to DB-15)	87
TableB-15 X.21 Serial DCE Cable Pinout (DB-60 to DB-15)	87
EIA-530 Interface	88
EIA-530 Connections	88
FigureB-15 EIA-530 Adapter Cable Connector, Network End	88
EIA-530 Serial Cable Assembly	88
FigureB-16 EIA-530 Serial Cable Assembly	88
TableB-16 EIA-530 DTE Cable Pinout (DB-60 to DB-25)	89
Smart Serial Connection Signals and Pinouts	90
FigureB-17 Smart Serial Interface Adapter Cables	90
EIA/TIA-232 Smart Serial Cable Assembly	91
TableB-17 EIA/TIA-232 DTE Smart Serial Cable Pinout	91
TableB-18 EIA/TIA-232 DCE Smart Serial Cable Pinout	91
EIA/TIA-449 Smart Serial Cable Assembly	92
TableB-19 EIA/TIA-449 DTE Smart Serial Cable Pinout	92
TableB-20 EIA/TIA-449 DCE Smart Serial Cable Pinout	93
X.21 Smart Serial Cable Assembly	94
TableB-21 X.21 DTE Smart Serial Cable Pinout	94
TableB-22 X.21 DCE Smart Serial Cable Pinout	95
V.35 Smart Serial Cable Assembly	95
TableB-23 V.35 DTE Smart Serial Cable Pinout	95
TableB-24 V.35 DCE Smart Serial Cable Pinout	96
EIA-530 Smart Serial Cable Assembly	97
TableB-25 EIA-530 DTE Smart Serial Cable Pinout	97
TableB-26 RS-530A DCE Smart Serial Cable Pinout	98