> 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 the following types of interfaces:

> • | Two Gigabit Ethernet, fiber optical (SFP)

> • | Two 1000Base-T Ethernet, copper (RJ-45)

> • | One RS-232 interface (RJ-45)

> • | One Central Office alarms (10-pin Molex))

> • | One BITS (BNC or 3-pin connector)

> 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

> Item | Label | Connector Type | Description
> 1 | SFP 1 | Optical fiber, Small Form-factor Pluggable | Gigabit Ethernet interface for connecting to management LAN
> 2 | SFP 2 | Optical fiber, Small Form-factor Pluggable | Gigabit Ethernet interface for connecting to management LAN
> 3 | Ethernet 1 | RJ-45 | 10/100/1000 Ethernet interface for connecting to management LAN
> 4 | Ethernet 2 | RJ-45 | 10/100/1000 Ethernet for connecting to management LAN
> 5 | Console | RJ-45 | RS-232 interface for local administration of the system
> 6 | BITS BNC | 75W BNC | Building Integrated Timing Supply (BITS) interface for T1 or E1 clock source (software selectable)
> 7 | CO Alarms | 10-pin Molex | Isolated dry-contact relay interfaces for connection to Central Office (CO) alarm monitoring panel

> ‌
> 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

> Item | Label | Connector Type | Description
> 1 | SFP 1 | Optical fiber, Small Form-factor Pluggable | Gigabit Ethernet interface for connecting to management LAN
> 2 | SFP 2 | Optical fiber, Small Form-factor Pluggable | Gigabit Ethernet interface for connecting to management LAN
> 3 | Ethernet 1 | RJ-45 | 10/100/1000 Ethernet for connecting to management LAN
> 4 | Ethernet 2 | RJ-45 | 10/100/1000 Ethernet for connecting to management LAN
> 5 | Console | RJ-45 | RS-232 interface for local administration of the system
> 6 | BITS 3-Pin | 3-pin Wire Wrap | BITS interface for T1 or E1 clock source (software selectable)
> 7 | CO Alarms | 10-pin Molex ® | Isolated dry-contact relay interfaces for connection to Central Office (CO) alarm monitoring panel

> ‌
> 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:

> • | Both SFP interfaces

> • | Both Ethernet interfaces

> • | SFP 1 and Ethernet 2

> • | SFP 2 and Ethernet 1

> 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

> Module Type | Interface Type | Cable Specifications
> 1000Base-SX | Fiber, LC duplex female connector | Fiber Type: Multi-mode fiber (MMF), 850 nm wavelength Core Size (microns)/Range:
> • | 62.5/902.23 feet (275 meters)
> • | 50/1640.42 feet (500 meters)
> Minimum Tx Power: -9.5 dBm Rx Sensitivity: -17 dBm

> ‌
> 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:

> • | 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 SFP interfaces follow the instructions below.

> Step 1 | Remove the cover from SFP1 or SFP2.

> Step 2 | Insert the cable into the interface and ensure that it locks in place.

> Using the RJ-45 Interfaces
> The two RJ-45 interfaces are auto-sensing 10Base-T / 100Base-Tx / 1000Base-Tx Ethernet interfaces. 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 Radiated Emissions Criteria, you must use shielded-twisted pair copper cable and ensure that it is properly terminated at both ends.
> SPIO SFP Interface
> SPIO RJ-45 Interface Pinout

> Pin | 100Base-TXx 100Mbps Cat5 | 1000Base-Tx 1Gbps Cat5+
> 1 | TX+ | BI DA+
> 2 | TX- | BI DA-
> 3 | RX+ | BI DB+
> 4 | na | BI DC+
> 5 | na | BI DC-
> 6 | RX- | BI DB-
> 7 | na | BI DD+
> 8 | na | BI DD-
> RX = Receive Data TX = Transmit Data BI = BI directional data DA, DB, DC, DD = Data Pair A, B, C, and D

> ‌
> 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 Serial Console Port
> The Console port is an RJ-45 RS-232 interface that is used to access the system’s 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.
> Important: To ensure compliance with Radiated Emissions Criteria, you must use shielded-twisted pair copper cable and ensure that it is properly terminated at both ends.
> SPIO Console Interface Pinouts
> SPIO Console Interface Pinouts

> Pin | Signal Description | Signal Type
> 1 | Clear to Send (CTS) | Input
> 2 | Data set Ready (DSR) | Input
> 3 | Receive Data (RX) | Input
> 4 | Signal Ground (SGND) | N/A
> 5 | Ready to Send (RTS) | Output
> 6 | Transmit Data (TX) | Output
> 7 | Data Carrier Detect (DCD) | Input
> 8 | Data Terminal Ready (DTR) | Output

> ‌
> SPIOs are shipped with an RJ-45-to-RJ-45 serial cable and an RJ-45-to-DB-9 adapter. The DB-9 adapter 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

> Signal Description | Signal Type | RJ-45 Pin | DB-9 Pin
> Clear to Send (CTS) | Input | 1 | 7
> Data set Ready (DSR) | Input | 2 | 4
> Receive Data (RX) | Input | 3 | 3
> Signal Ground (SGND) | N/A | 4 | 5
> Ready to Send (RTS) | Output | 5 | 8
> Transmit Data (TX) | Output | 6 | 2
> Data Carrier Detect (DCD) | Input | 7 | 1
> Data Terminal Ready (DTR) | Output | 8 | 6

> ‌
> 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.
> 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.

> Step 1 | Connect the RJ-45 end of the cable to the port labeled Console on the SPIO.

> Step 2 | Connect one end of the RJ-45-to-RJ-45 cable into the DB-9 adapter.

> Step 3 | Connect the DB-9 end of the cable to the serial port on the workstation.

> Step 4 | Configure the communications application on the workstation to support the following settings: 115,200 bps, 8 data bits, no parity, 1 stop bit, no flow control.

> 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:

> • | A high temperature is detected on a card, causing the fan tray to switch the fans to high speed.

> • | Major Alarm: This alarm is triggered when there is a:

> • | Hardware failure that causes the card to be placed in an off-line state

> • | Power filter unit failure or removal from the chassis

> • | Failure of one or more fans on either the upper or lower fan tray

> • | Fan tray failure or either fan tray assembly is removed from the chassis

> • | Critical Alarm: This alarm is triggered when:

> • | A degradation in service is detected. For example, if the system is supporting a large number of subscribers and packet processing cards are removed, the amount of available CPU and memory resources available for use are reduced.

> The CO alarm interface’s pinout is provided in the following figure and table.
> SPIO CO Alarm Interface Pinouts
> SPIO CO Alarm Interface Pinouts

> Pin | Signal
> 1 | Major Alarm - Normally closed
> 2 | Major Alarm - Common
> 3 | Major Alarm - Normally open
> 4 | Minor Alarm - Normally closed
> 5 | Minor Alarm - Common
> 6 | Minor Alarm - Normally open
> 7 | Critical Alarm - Normally closed
> 8 | Critical Alarm - Common
> 9 | Critical Alarm - Normally open
> 10 | Not used

> ‌
> 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

> CO Alarms IF Pin Number | Cable Connector Pin Number | Cable Wire Color | Cable Terminal Block Position No. | Signal
> 1 | 6 | Black | 1 | Major Alarm - Normally closed
> 2 | 7 | Orange | 2 | Major Alarm - Common
> 3 | 8 | Red | 3 | Major Alarm - Normally open
> 4 | 9 | Brown | 4 | Minor Alarm - Normally closed
> 5 | 10 | Yellow | 5 | Minor Alarm - Common
> 6 | 1 | Green | 6 | Minor Alarm - Normally open
> 7 | 2 | Blue | 7 | Critical Alarm - Normally closed
> 8 | 3 | Violet | 8 | Critical Alarm - Common
> 9 | 4 | Gray | 9 | Critical Alarm - Normally open
> 10 | 5 | Not Applicable | Not Applicable | Not applicable

> ‌
> Electrical Characteristics
> Each of the three dry-contact relay switches is rated to support a maximum switching current of 1A@30VDC. The relay contacts should not directly connected to high current devices such as sirens and flashing lamps.
> 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 monitoring 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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