Cabling the Switch Processor Input/Output Line Card


Cabling the Switch Processor Input/Output Line Card
 
This chapter provides information on the Switch Processor Input/Output (SPIO) line card's interfaces and instructions for installing the cables.
Important: Class 1 Laser Compliance Notice Because of the SFP interfaces, this product has been tested and found to comply with the limits for Class 1 laser devices for IEC825, EN60825, and 21CFR1040 specifications.
SPIO Interfaces
The SPIO is available with one of two interfaces:
 
BNC BITS Interface Version
The figure and table that follow provide information on the various interfaces in this version of the SPIO.
 
BNC SPIO Interface Callouts
BNC SPIO Interface Descriptions
3-Pin BITS Interface Version
The figure and table that follow provide information on the various interfaces in this version of the SPIO.
 
3-Pin SPIO Interface Callouts
3-Pin SPIO Interface Descriptions
Connecting to the Management LAN
The SPIO provides two interfaces for physical connection to the management LAN: the SFP and the Ethernet (RJ-45) interfaces.
When you cable these interfaces, make sure you do only one of the following:
 
Using the SFP Interfaces
The two optical SFP interfaces are hot-pluggable 802.3z-compliant Gigabit Ethernet interfaces that take their configuration from the inserted cable type. Refer to the following table for information about supported cable specifications.
SFP Interface Supported Cable Types
Important: Please read all of the notices and warnings f for Class 1 Laser devices following this table before handling this component.
Warning: Class 1 Laser Device Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Invisible laser radiation may be emitted from the aperture of the port when no cable is connected. Avoid exposure to laser radiation and do not look into open apertures. Be sure to keep the cover on the interface when it is not in use. Laser Klasse 1 - nur speziell ausgebildetes Personal darf dieses Geraet warten. Nicht in den Laser schauen, um Augenverletzungen zu vermeiden. Nicht genutzte Buchsen mit der entsprechenden Kappe verschliessen.
Each optical SFP interface is equipped with a transmit (TX) port and a receive (RX) port as shown in the following figure.
SPIO SFP Interface
Additionally, the SPIO provides two light emitting diodes (LEDs) for this interface:
 
To use the SFP interfaces follow the instructions below.
Step 1
Step 2
Using the RJ-45 Interfaces
The two RJ-45 interfaces are auto-sensing 10Base-T / 100Base-Tx / 1000Base-Tx Ethernet interfaces that require shielded twisted pair copper cable. Refer to the figure and table that follow for pinouts for the RJ-45 Ethernet ports.
Important: To comply with GR-1089 intra-building, lightning-immunity requirements and ensure compliance with FCC Radiated Emissions Criteria, you must use shielded-twisted pair cable and ensure that it is properly terminated at both ends.
SPIO SFP Interface
SPIO RJ-45 Interface Pinout
Each of these interfaces is equipped with two light emitting diodes (LEDs):
Link: This green LED shows whether or not the line card is connected to the network. The LED is illuminated when the card is connected.
Activity: This green LED shows when data is transmitted or received. The LED is illuminated when data is passing through the interface.
To use the RJ-45 interfaces, simply plug the Ethernet cable into either the Ethernet1 or Ethernet2 interface.
 
Connecting to the System’s Console Port
The system’s console port is an RJ-45 RS-232 interface that is used to access its command line interface (CLI). The interface communicates at 9600 to 115,200 bps. The default is 115,200 bps.
The interface’s pinout is provided in the figure and table that follow.
 
SPIO Console Interface Pinouts
SPIO Console Interface Pinouts
SPIOs are shipped with an RJ-45-to-RJ-45 serial cable and an RJ-45-to-DB-9 adapter. The DB-9 adaptor is female. If you use the cable and adaptor together, refer to the following figure and table for the cable’s pinout.
SPIO Console Cable Pinouts
SPIO Console Cable Pinouts
To connect to the system’s console port, follow the instructions below:
Important: These instructions assume that you are using the RJ-45-to-RJ-45 with the DB-9 serial (EIA-232) cable to connect to the system’s console port. This is the cable that is shipped with the SPIO. Use it to connect to a workstation that has a communications application that can access the workstation’s serial port, such as Minicom for Linux® or HyperTerminal® for Windows.
Step 1
Step 2
Step 3
Step 4
 
Important: If the console cable is to be used in a null-modem configuration, the workstation or terminal server must provide a carrier-detect signal.
Connecting to the CO Alarm Interface
The Central Office (CO) Alarm interface provides a 10-pin Molex female-connector, enabling three normally closed dry-contact relays. These relays trigger external audio and/or visual indicators, depending on the following three alarm levels:
 
Minor Alarm: This alarm is triggered when:
Major Alarm: This alarm is triggered when there is a:
Critical Alarm: This alarm is triggered when:
The CO alarm interface’s pinout is provided in the following figure and table.
SPIO CO Alarm Interface Pinouts
SPIO CO Alarm Interface Pinouts
A “Y” cable is shipped with each chassis to provide connectivity from the CO alarm interfaces on each of the two installed SPIOs. The cable consists of two crimp housings for connecting to the SPIOs that are terminated at a rack-mountable 9-position terminal block. Each of the two crimp housings are keyed to fit into the interface in one direction.
The following figure and table display the cable and its pinouts.
 
CO Alarms Cable
CO Alarms Cable Pinout
Electrical Characteristics
Each of the three dry-contact relay switches is rated to support a maximum switching current of 1A@30VDC.
Central Office Alarm Wiring Example
The example in the following figure depicts how each of the three dry-contact relay switches can control up to two alarming devices. In this example, the CO alarm interface is connected to a CO alarms panel, where a green LED is wired to indicate a normal condition (normally closed relay) and a red LED is wired to indicate an alarm condition (normally open relay).
 
CO Alarm Wiring Example
In this wiring example, with each relay switch in its NC (normally closed) position the green LED is illuminated. If a switch is in the NO (normally open) position, the red LED is illuminated.
 
 

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