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Connecting the Cables
This chapter describes how to connect the interface cables, power the system, and check the status LEDs
on circuit cards to make sure you have installed everything properly.
Cisco MGX 8260 configurations will require some type of cable management plan for the WAN cabling.
This may include the installation of vertical and horizontal cable raceways that bolt to the racks.
The MGX 8260 uses the following cable types:
•
BITS—STP (Shielded Twisted Pair) cables for the timing source, terminated with RJ-45 connectors
DS3—Coaxial cables for DS3 lines terminated with SMB connectors (see
•
T1—STP cables for 100-ohm T1 lines terminated with 50-pin RJ-21 connectors
•
•
E1—STP cables for 120-ohm E1 lines terminated with RJ-48 connectors
Fast Ethernet—Category 5 STP cables for 100BASE-TX lines terminated with RJ-45 connectors
•
•
OC-3—Single or mulitmode fiber cables for OC-3 lines terminated in small form factor LC or
MT-RJ connectors
•
10BASE-T—Category 5 STP cables for Ethernet management ports terminated with RJ-45
connectors
•
Alarm—Custom cable for visual or audible alarm indications terminated on a DB-15 connector
Console—EIA/TIA-232 serial cable for a console terminated with a DB-9 connector
•
Aux—EIA/TIA-232 serial cable for a modem terminated with a DB-9 connector
•
•
DC Power—12 AWG ST, UL 1015 wires for power and return. 8 AWG for safety ground
For more information on cables, see
Caution
Use shielded cables with shielded connector hoods for all connections except DC power and ground.
Table 5-1
78-10966-02
Appendix A, "Cable and Connector
lists custom adapter and extension cables offered by Cisco for the MGX 8260.
C H A P T E R
Table
Reference".
Cisco MGX 8260 Hardware Installation Guide
5
5-1)
5-1
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Related Manuals for Cisco MGX 8260
Summary of Contents for Cisco MGX 8260
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Page 1: Connecting The Cables
Cisco MGX 8260 configurations will require some type of cable management plan for the WAN cabling. This may include the installation of vertical and horizontal cable raceways that bolt to the racks. - Page 2 BITS cable to the RJ-45 connector on the SCC back card in slot 9. (See Figure 5-1 Connecting the BITS Cable Cisco MGX 8260 Hardware Installation Guide Description T3/E3 SMB Female to SMB Female, 6 feet (75 ohm)
- Page 3 Appendix A, “Cable and Connector Reference,” DS3 coaxial cables to nonredundant BSCs or DMCs, follow these steps. Note Mark each cable with identifying information suitable for tracking in the MGX 8260 configuration database. Step 1 Connect a transmit DS3 line (coaxial cable terminated with a female SMB connector) to the TX connector on the T3E3BC-6DSX back card.
- Page 4 TX cable RX cable To connect DS3 cables to redundant BSCs, follow these steps. Label each cable with identifying information suitable for tracking in the MGX 8260 configuration Note database. Using a DS3 Y-Adapter cable, connect one of the cable’s SMB plugs to a TX connector on the DS3 back Step 1 card.
- Page 5 To connect the T1 cables to an NSC back card equipped with 50-pin RJ-21 connectors, follow these steps. Label each cable with identifying information suitable for tracking in the MGX 8260 configuration Note database. Step 1 Connect the transmit T1 cable to the 50-pin connector at the top of the NSC rear card.
- Page 6 Step 5 Repeat Step 1 Step 6 Figure 5-4 Connecting T1 Cables PWR B -48VDC B Cisco MGX 8260 Hardware Installation Guide through Step 5 for other NSC back cards. PWR A RTN B -48VDC A RTN A Chapter 5...
- Page 7 A 4-wire cable terminated with RJ-48 connectors connects the trunks to the NSC back card. A cable wiring diagram is provided in To connect E1 cables to the 120-ohm RJ-48 connectors on the NSC back card, follow these steps. Label each cable with identifying information suitable for tracking in the MGX 8260 configuration Note database.
- Page 8 Connecting E1 Cables via RJ-48 Connectors Figure 5-5 Connecting E1 Cables Cisco MGX 8260 Hardware Installation Guide PWR B PWR A -48VDC A RTN A Chapter 5 Connecting the Cables STP cable 78-10966-02...
- Page 9 Appendix A, “Cable and Connector Reference,” Step 2 for other Fast Ethernet cables. Step 1 Connecting Fast Ethernet Cables for a cable wiring diagram. If through Step 3 for the adjacent SCC. Cisco MGX 8260 Hardware Installation Guide Figure 5-6).
- Page 10 If the SCC is equipped with the single mode OC-3 back card, the fiber cables must be terminated with LC type connectors at the MGX 8260. If the SCC is equipped with the multimode OC-3 back card, the fiber cables must be terminated with MT-RJ type connectors at the MGX 8260.
- Page 11 Chapter 5 Connecting the Cables Figure 5-7 Connecting OC-3 Cables OC3 Fiber cable 78-10966-02 PWR B Connecting OC-3 Cables PWR A -48VDC A RTN A Cisco MGX 8260 Hardware Installation Guide 5-11...
- Page 12 Optionally, connect an EIA/TIA-232 serial cable with a DB-9 connector between the AUX connector Step 3 and a modem. A modem supports remote management via a dialup connection. Use a cable with straight-through wiring. Cisco MGX 8260 Hardware Installation Guide 5-12 Chapter 5 Connecting the Cables for a cable wiring diagram.
- Page 13 Connecting Management Cables An SCC back card includes two Ethernet ports for remote management. Each port is assigned its own IP address. To connect a 10BASE-T cable for MGX 8260 node management over a LAN: Step 1 Connect an Ethernet cable to one of the RJ-45 management ports on the SCC back card. (See Figure 5-8.)
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Page 14: Applying Dc Power
AWG conductors for the Supply (–48V) and two 12 AWG conductors for the Return (RTN) wires from the power source to the appropriate terminal blocks on the MGX 8260. The length of each wire should be kept as short as possible and the same length. This specification provides the proper conductor capacity for the MGX 8260’s maximum power requirements (1800 watts). - Page 15 Chapter 5 Connecting the Cables Connect two return cables, one to each MGX 8260 RTN terminal for power circuit A. Connect the other Step 5 ends to the RTN terminals at power source A. Connect two supply cables, one to each –48V terminal for power circuit A. Connect the other ends Step 6 through –48V circuit breaker terminals for power circuit A.
- Page 16 Chapter 5 Connecting the Cables Applying DC Power Figure 5-11 MGX 8260 Rear View of Power Connections Silkscreened on chassis PWR A -48VDC A RTN A PWR B PWR A -48VDC B RTN B -48VDC A RTN A To protective ground...
- Page 17 Figure 5-12 Installing the Power Terminal Cover P W R A P W R B R T N A -4 8 V D C R T N B -4 8 V D C Cisco MGX 8260 Hardware Installation Guide 5-17 78-10966-02...
- Page 18 CARD LED changes to green on the active card and yellow on the standby cards. If the CARD LED of any card is red or off, troubleshoot the problem before proceeding. Cisco MGX 8260 Hardware Installation Guide 5-18...