CHAPTER
8
Cabling and Configuring the
CES Port Adapter Modules
This chapter describes cabling and configuration procedures for the LightStream 1010
asynchronous transfer mode (ATM) switch circuit emulation service (CES) T1 and E1 port
adapter modules (PAMs). When your switch leaves the factory, it is configured as specified
inyourorder and is readyforinstallation and startup.Asyour communication requirements
change, you might want to upgrade your system, add components, or change the initial
configuration.
The following CES T1 and E1 PAMs are described in this chapter:
• CES T1 Twisted-pair Port Adapter Module
• CES E1 Twisted-pair Port Adapter Module
• CES E1 BNC Port Adapter Module
Software and upgrades require specific document part numbers and other frequently
updated information; therefore, only basic software configuration guidelines are included
in this publication. Detailed, up-to-date instructions are included in the LightStream 1010
ATM Switch Software Configuration Guide and command line interface (CLI) command
descriptions are provided in the LightStream 1010 ATM Switch Command Reference.
This chapter contains the following information:
• Overview of the CES Port Adapter Modules
• Connecting the Interface Cables and Checking the LEDs
• Configuring the Interfaces
Cabling and Configuring the CES Port Adapter Modules 8-1
FCC Part 68 Notice
FCC Part 68 Notice
Theportadapter, ModelWAI-T1C-4RJ48used in theATM/LANswitchcomplies withPart
68 of the FCC rules. On the bottom of this equipment is a label that contains, among other
information, the FCC registration number. If requested, this information must be provided
to the telephone company.
This equipment cannot be used on telephone company-provided coin services. Connection
to the Party Line Service is subject to State Tariffs.
If this equipment causes harm to the telephone network, the telephone company will notify
you inadvance thattemporarydiscontinuance of service mayberequired. If advancenotice
isn’t practical, the telephone company will notify the customer as soon as possible. Also,
you will be advised of your right to file a complaint with the FCC if you believe it is
necessary.
The telephone company may make changes in its facilities, equipment, operations, or
procedures that could affect the operation of the equipment. If this happens, the telephone
company will provide advance notice in order for you to make the necessary modifications
in order to maintain uninterrupted service.
If trouble is experienced with this equipment, please contact us for repair and warranty
information. If the trouble is causing harm to the telephone network, the telephone
company may request you remove the equipment from the network until the problem is
resolved.
It is recommended that the customer install an AC surge arrestor in the ACoutlet to which
this deviceisconnected. This is to avoiddamagingthe equipment caused by local lightning
strikes and other electrical surges.
8-2 LightStream 1010 ATM Switch PAM Installation Guide
Overview of the CES Port Adapter Modules
This equipment uses USOC jacks as listed in Table 8-1:
Table 8-1 USOC Jacks for CES Port Adapter Modules
Facility
Model Name
WAI-T1C-4RJ48 04DU9-BN 6.0N N/A
WAI-T1C-4RJ48 04DU9-DN 6.0N N/A
WAI-T1C-4RJ48 04DU9-1KN 6.0N N/A
WAI-T1C-4RJ48 04DU9-1SN 6.0N N/A
WAI-T1C-4RJ48 04DU9-1ZN 6.0N N/A
Interface Code
Service Order
Code Jack Type
Overview of the CES Port Adapter Modules
The circuit emulation service (CES) T1 and E1 Port Adapter Modules (see Figure 8-1) are
ideal for links that require constant bit rate (CBR) services such as interconnecting PBXs,
time-division multiplexers, and video conference equipment over campus, public, or
privatenetworks. The four portsonthePAMcan be configured as redundant linksusingthe
switch's routing protocols. The T1 PAMs support UTP connectors and the E1 PAMs
support either twisted-pair, STP, or 75-ohm BNC connectors. Status and carrier detect
LEDs on each port give quick, visual indications of port status and operation. For detailed
network management support, comprehensive statistics gathering and alarm monitoring
capabilities are provided.
Cabling and Configuring the CES Port Adapter Modules 8-3
Overview of the CES Port Adapter Modules
Figure 8-1 Typical CES T1 or E1 Port Adapter Module (UTP Port Shown)
H8803
S1
S2
CD
CES E1 120Ω
0
1
S1
S2
CD
2
3
S1
S2
CD
S1
S2
CD
Each of the ports on the PAM can be configured to support the following clocking options:
• self-timing based on a Stratum 4 level clock
• loop timing from the received data stream—ideal for public network connections
• timing synchronized to a selected master clock port, required in order to distribute a
single clock across a network
The plug-and-play mechanisms of the LightStream 1010 allows the switch to come up
automatically. All configuration information for port adapter modules can be saved
between hot swaps and switch reboots, while interface types are automatically discovered
by the switch. This eliminates mandatory manual configuration.
The LightStream 1010 supports any combination of port adapter modules. Customers can
configure their switches with only the number and type of interfaces required, with up to
32 CES T1 or CES E1 interface ports.
This section describes the following:
• CES T1 and E1 PAM Features
• CES T1 and E1 PAM Applications
8-4 LightStream 1010 ATM Switch PAM Installation Guide
CES T1 and E1 PAM Features
The CES T1 and E1 PAMs provide the following features:
• 4-port T1 or E1 CBR port adaptor module (PAM)
• Structured and unstructured CBR processing
• Adaptive, Synchronous Residual Time Stamp (SRTS), and synchronous clocking for
CBR traffic
• Clear Channel and Channelized with CAS signaling on CBR ports
• On-line Insertion and Removal
• Clear Channel Circuit Emulation
• IOS CLI (Command Line Interface)
• Global network clock synchronization (Nettime)
• Dynamic ATM addressing for CBR channel-groups
Overview of the CES Port Adapter Modules
CES T1 and E1 PAM Applications
The CES T1 and E1 Port Adapter Modules have four ports and are ideal for intercampus or
wide-area links. Figure 8-2 is an example of the CES T1 and CES E1 PAM applications.
Cabling and Configuring the CES Port Adapter Modules 8-5
Overview of the CES Port Adapter Modules
Figure 8-2 CES T1 and E1 Port Adapter Module Applications
T1
ATM Switch
Time Division
Multiplexer
Telephone
T1 between
buildings
or to WAN
CODEC
Video
NM3991
The CES T1 or CES E1 PAM provides the following ATM connections:
• Interconnecting PBXs
• Time-division multiplexer connections
• Video conference connections
8-6 LightStream 1010 ATM Switch PAM Installation Guide
Connecting the Interface Cables and Checking the LEDs
Connecting the Interface Cables and Checking the LEDs
All CES interfaces are bidirectional. You must use the appropriate CES interface cable to
connect the CES BNC or twisted-pair PAM interface with an external CES network.
This section describes the following:
• CES Connection Equipment
• Connecting the Interface Cables and Checking the LEDs
CES Connection Equipment
For CES traffic over twisted-pair, use the RJ-48C connect to connect the CES T1 PAM or
CES E1 PAM to the external CES network. See the section “Preparing Network
Connections” in the chapter “Preparing for Installation” for a description of an RJ-48C
connector and twisted-pair and shielded twisted-pair cable.
For coaxial traffic, use the BNC connector to connect the CES E1 PAM with the external
CES network. See the section “Preparing Network Connections” in the chapter “Preparing
for Installation” for a description of a BNC connector and coaxial cable.
CES T1 and E1 PAM Network Connections and LEDs
The CES T1 and CES E1 PAMs provide an interface to CES switching fabrics for
transmitting and receiving data at up to 1.544 Mbps (T1) and 2.048Mbps (E1)
bidirectionally. The PAM LEDs provide status information for the port adapter module’s
individual interface connections.
Caution T1 and E1 port must be connected to an NT1 device.
CES Network Connections
All CES T1 and CES E1 interfaces are bidirectional. You must use the appropriate CES
interface cable to connect the CES T1 or CES E1 PAM with an external CES network.
Cabling and Configuring the CES Port Adapter Modules 8-7
Connecting the Interface Cables and Checking the LEDs
The CES PAM can support interfaces that connect to the following physical layers:
• E1 G.703 with HDB3 coding
• E1 2.048 Mbps coaxial cable
Connect theCESinterface cables asshownin Figure 8-3.Fordetailed descriptions of ATM
cabling requirements, refer to the sections “Distance Limitations” and “ATM Connection
Equipment” in the chapter “Preparing for Installation.”
CES T1 and E1 Module LEDs
This section describes the LEDs on the faceplate of the CES modules, showstheirpossible
illumination states, and defines the operational status of the associated ports, given certain
illumination patterns of the LEDs.
The LEDs provide status information for the port adapter module’s individual BNC and
twisted-pair interface connections. The LEDs are shown in Figure 8-3.
8-8 LightStream 1010 ATM Switch PAM Installation Guide
Connecting the Interface Cables and Checking the LEDs
Figure 8-3 CES T1 and E1 Connections and LEDs
S1
S2
CD
CES T1
S1
S2
CD
CES E1 120Ω
TX
0
S1
S2
CD
1
2
S1
S2
CD
3
S1
S2
CD
RJ-48c connectors
0
S1
S2
CD
1
2
S1
S2
CD
3
S1
S2
CD
RJ-48c connectors
0
RX
TX
1
RX
TX
0
RX
TX
1
RX
S1
CES E1 75
S2
CD
Ω
S1
S2
CD
S1
S2
CD
S1
S2
CD
H9220
BNC connectors
The LEDs for the CES T1 and CES E1 modules exhibit the illumination states shown in
Table 8-2.
Cabling and Configuring the CES Port Adapter Modules 8-9
Connecting the Interface Cables and Checking the LEDs
Table 8-2 LED Illumination States of CES T1 or CES E1 PAMs
Port LEDs Illumination States
S1 (status1) Steady green, red, or yellow; flashing green, red, or yellow; or off.
S2 (status2 Steady green, red, or yellow; flashing green, red, or yellow; or off.
CD (carrier detect) Either on (green) or off.
Table 8-3 shows the possible status conditions of a CES T1or CES E1 port, as indicated by
certain settings of associated port LEDs.
Table 8-3 Port Status Conditions Indicated by CES T1 or CES E1 LEDs
Port Status Indication S1 LED State S2 LED State CD LED State
Port not configured Off Off Off
Port administratively down Off Off Off
Normal Green Green Green
Red alarm due to framing error Red Red Off
Red alarm due to loss of cells Red Red Green
Yellow alarm Yellow Off Green
Blue alarm Off Yellow Green
Port in loop state Flashing green Flashing green Green
Note During alarm integration, the indicated LEDs will flash the “upcoming” or “next”
state combination indicated in Table 8-3. For example, when the line conditioning state
machine is notified of loss of signal (LOS), it will cause S1 and S2 to flash red, since a
continued LOS will put the port in the red alarm state.
8-10 LightStream 1010 ATM Switch PAM Installation Guide
Configuring the Interfaces
Configuring the Interfaces
When the switch is poweredon initially without any previous configuration data, the ATM
interfaces are automatically configured on the physical ports. ILMI and the physical card
type are used to automatically derive the ATM interface type, UNI version, maximum
virtual path identifier (VPI) and virtual channel identifier (VCI) bits, ATM interface side,
and ATM UNI type.
Default ATM Interface Configuration Without Autoconfiguration
If ILMI has been disabled or if the connecting end node does not support ILMI, the
following defaults are assigned to all CES T1 and CES E1 interfaces:
• ATM interface type = UNI
• UNI version = 3.0
• Maximum VPI bits = 8
• Maximum VCI bits = 14
• ATM interface side = network
• ATM UNI type = private
• Loopback = no loop
• Signaling mode = no signaling
• Clock-source = network derived
• Data format = clear channel
• Timing = synchronous
• Line build out = 0 to 110 feet
• Cell delay variation = 2,000 microseconds
• Channel associated signaling = false
• Partial fill = 47
Cabling and Configuring the CES Port Adapter Modules 8-11
Configuring the Interfaces
The following PAM types have specific defaults assigned:
CES T1 PAM:
• Framing = ESF
• Line coding = B8ZS
• Line state = no alarm
CES E1 PAM:
• Line type = E1
• Line coding = HDB3
• International bits = 0x3
• National bits = 0x1f
• Multi-frame spare bits = 0xb
The following defaults apply for all versions of the CES modules, unless you change them
manually by means of specific CLI commands issued during module configuration:
• CES-IWF AAL1 service unstructured—This default setting automatically
establishes unstructured (clear channel) CES services for a CES module.
• CES-IWF AAL1 clock source synchronous—This default setting automatically
establishes synchronous clocking for all CES-IWF operations.
Note You can accept the default ATM interface configuration or overwrite the default
interface configuration using the CLI commands. These commands are described in the
LightStream 1010 ATM Switch Software Configuration Guide, which provides detailed
ATM interface configuration tasks.
This concludestheexplanation of the CEST1andCES E1 port adaptermodulecablingand
configuration.
8-12 LightStream 1010 ATM Switch PAM Installation Guide
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