Cisco Systems manual PA-T3 Receptacles and Cables, Full Rate Scrambling Subrate MDL 1 Support

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				PA-T3 Receptacles and Cables

	LED	Color	State	Description

	ENABLED	Green	On	Indicates that port adapter is ready for operation.

	Uplink Port Status

	LL	Yellow	On	Indicates that port is in local loopback mode.

PA-T3 Receptacles and Cables

The PA-T3 port adapter serial interface cable, which is a 75-ohm coaxial cable, connects your router to a T3 serial network. Serial cables conform to EIA/TIA-612 and EIA/TIA-613 speciﬁcations. The serial ports on the PA-T3 serial port adapter are considered to be data terminal equipment (DTE) devices.

On a single PA-T3 serial port adapter, there are one or two T3 serial ports, each with two connectors (receive and transmit), where you connect the Cisco 75-ohm coaxial cable. The 75-ohm coaxial cable (Cisco part number CAB-ATM-DS3/E3) for the PA-T3 serial port adapter is available only from Cisco Systems; it is not available from outside commercial cable vendors.

The Cisco PA-T3 75-ohm coaxial cable (see Figure 2-3) is available only in 10-foot (3.05-meter) lengths. The typical maximum distance between stations for PA-T3 transmissions is

1300 feet (396 meters).

Figure 2-3 PA-T3 Serial Port Adapter Cable

75-ohm coaxial cabling

BNC plug

BNC plug

H3399

You can test the data terminal equipment-to-data circuit-terminating equipment (DTE-to-DCE) cable connection by using the loopback dte command. See the “Using the loopback Command to Verify the Physical Interface” section on page 8-24 for more information.

Interoperability Guidelines for PA-T3 Serial Port Adapter DSUs

The PA-T3 serial port adapter supports several types of integrated DSUs. Table 2-3 lists the feature compatibilities of the PA-T3 serial port adapter DSUs.

Table 2-3	Feature Compatibilities of PA-T3 Serial Port Adapter DSUs

	Full Rate	Scrambling	Subrate	MDL1 Support
DSU	Support	Support	Support	MDL1 Support
DL3100	Yes	Yes	Yes	No

Kentrox	Yes	Yes2	Yes2	No
Larscom	Yes	Yes	Yes	No

1MDL=Maintenance Digital Link.

2PA-T3 serial port adapters support either scrambling or Kentrox subrate, not both at the same time.

Preparing for Installation 2-5

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Contents Corporate Headquarters PA-T3 Serial Port Adapter Installation and ConfigurationPage Section Title Description PrefaceObjectives OrganizationRelated Documentation Section Title Description Related DocumentationCisco Connection Online Cisco Connection OnlineCisco Documentation CD-ROM Cisco Documentation CD-ROMPort Adapter Overview OverviewPA-T3 Serial Port Adapter Features PA-T3 Serial Port Adapter FeaturesManagement Information Base Management Information Base4PA-T3 Serial Port Adapter Installation and Configuration Parts and Tools Required Preparing for InstallationSoftware and Hardware Requirements Software and Hardware RequirementsPA-2T3 PA-T3 Port Adapter LEDs PA-T3 Port Adapter LEDsRouter show version Color State Description LEDs for Uplink Port StatusFull Rate Scrambling Subrate MDL 1 Support Feature Compatibilities of PA-T3 Serial Port Adapter DSUsPA-T3 Receptacles and Cables PA-T3 Receptacles and CablesSafety Guidelines Safety GuidelinesTelephone Wiring Guidelines Electrical Equipment GuidelinesElectrical Equipment Guidelines FCC Class a Compliance Preventing Electrostatic Discharge DamageFCC Class a Compliance FCC Class a Compliance 10PA-T3 Serial Port Adapter Installation and Configuration Overview VIP2 and the PA-T3 Port AdapterDimm U5 OverviewPA-T3 in port adapter Slot PA-T3 in port adapter slot Removing a Port Adapter Removing a Port AdapterInstalling a Port Adapter Installing a Port AdapterH3152 Installing a Port Adapter 8PA-T3 Serial Port Adapter Installation and Configuration Catalyst RSM/VIP2 and the PA-T3 Port Adapter Standoff Removing a Port Adapter Installing a Port Adapter Aligning a Port Adapter in a Port Adapter Slot 6PA-T3 Serial Port Adapter Installation and Configuration Cisco 7200 Series PA-T3 Port Adapter Port adapter Handle Lever unlocked Position Handling a Port Adapter Port adapter Handle Cisco uBR7200 Series and the PA-T3 Port Adapter Port adapters Port adapters Port adapter lever in unlocked position Inside slot guide PC board Metal carrier Port adapter retention clip in locked position 6PA-T3 Serial Port Adapter Installation and Configuration Configuring the PA-T3 Interfaces Cisco 7200 Series and Cisco uBR7200 Series Ports Using the Exec Command InterpreterUsing the Exec Command Interpreter Identifying Port Adapter Slot and T3 Interface Port NumbersSerial Port Number Example-Cisco Cisco 7200 Series and Cisco uBR7200 Series PortsIdentifying Port Adapter Slot and T3 Interface Port Numbers VIP2 PortsCatalyst RSM/VIP2 Ports Catalyst RSM/VIP2 PortsPA-T3 Serial Port Adapter in the Catalyst Cisco 7100 Series PortsShutting Down an Interface Interface Subcommand Syntax Platform Command ExampleRouter# configure terminal Shutting Down an InterfaceRouterconfig-if#interface serial 1/1/1 Routerconfig-if#interface serial 1/0Routerconfig-if#interface serial 1/1 Routerconfig-if#interface serial 1/1/0Router# show interfaces serial 1/1/0 Routerconfig# interface serial 1/0Router# copy running-config startup-config OK Router# show interfaces serial 1/0Performing a Basic Conﬁguration Performing a Basic ConfigurationRouterconfig# interface serial 1/1/0 Routerconfig# interface serial 3/0Conﬁguration Example Configuration ExampleEnabling T3 Scrambling Setting the BandwidthDeﬁning the DSU Mode Customizing the PA-T3 Serial Port AdapterSpecifying T3 Framing Setting the Cable LengthConﬁguring Cyclic Redundancy Checks Specifying T3 FramingUsing show Commands to Verify Status Checking the ConfigurationChecking the Conﬁguration Show running-conﬁg command. Display Router# show interfaces serial 2/0 Router# show controllers serial 3/0 Router# show controllers 2/0Router# show controllers serial 10/0/0 Serial10/0/0 FebeRouter# show version Router# show controllers serial 0/0 Serial0/020PA-T3 Serial Port Adapter Installation and Configuration Router# show diag Router# show controllers cbus 1/0/0 Router# show controllers cbus 0/0 Using the ping Command to Verify Network Connection Using the loopback Command to Verify the Physical InterfaceRouterconfig# interface serial 6/0 Using the loopback Command to Verify the Physical Interface Set the interface into local loopback mode as follows26PA-T3 Serial Port Adapter Installation and Configuration Cisco 7120 Series Router-Port Adapter Slot 3 Location Cisco 7100 Series and the PA-T3 Port AdapterCisco 7140 Series Router-Port Adapter Slot 4 Location Installing a Port Adapter Guides