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CHAPTER 3
Channelized T3 Trunk Card
The Cisco AS5800 universal access server supports a channelized T3 (CT3) ingress interface that
provides asynchronous aggregation of channelized interfaces and multiplexing on a single T3 facility.
The CT3 trunk card is installed in the Cisco 5814 dial shelf chassis in slots 0 to slot 5. The
Cisco AS5800 currently supports as many as two CT3 trunk cards.
This chapter explains how to remove and replace a CT3 trunk card in the Cisco 5814 dial shelf chassis,
and
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CHANNELIZED T3 Chapter 3 Channelized T3 Trunk Card CT3 Trunk Card Overview Figure 3-1 CT3 Trunk Card HCPU HCPU Receive BNC connector Transmit BNC connector Transmit DSx1 connector Receive DSx1 connector Each CT3 trunk card performs the following functions: • Provides physical termination for as many as 672 sessions. • Provides digital termination for as many as 256 DS0 connections (calls) using onboard High-Level Data Link Control (HDLC) controllers. Note that the D-channel of a PRI consume
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DSI PCMCIA CONSOLE NETWORK CLOCK ALARMS 10 BASE T DIAL SHELF INTERCONNECT DIAL SHELF CONTROLLER DSI PCMCIA CONSOLE NETWORK CLOCK ALARMS 10 BASE T DIAL SHELF INTERCONNECT DIAL SHELF CONTROLLER HCPU MODEM HCPU MODEM HCPU MODEM HCPU MODEM HCPU MODEM HCPU MODEM HCPU MODEM HCPU MODEM HCPU MODEM HCPU MODEM CHANNELIZED E1/T1 CHANNELIZED E1/T1 MBUS PWR MIN HIST MAJ ACO MBUS CUTOFF PWR MIN HIST CLEAR MAJ SET ACO CUTOFF CLEAR SET MAST ATTEN SLOT 1 CLK SLOT 0 MAST ATTEN SLOT 1 CLK SLOT 0 POWER FAIL Cisco A
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Chapter 3 Channelized T3 Trunk Card CT3 Trunk Card Overview Clocking All Cisco AS5800 access server trunk cards use the same transmit clock. This clock can originate from the following sources: • TDM clock source—A priority value from 1 to 50 that is applied to a clock source when multiple clock sources are used • External clock source—A clock source external to the access server Clocks are prioritized by slot number (slots 0 to 5). The highest-priority clock is selected from the card in sl
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CHANNELIZED T3 Chapter 3 Channelized T3 Trunk Card CT3 Trunk Card Overview Figure 3-3 CT3 Trunk Card Front Panel LED and Alphanumeric Indicators HCPU HCPU Alphanumeric display Table 3-1 lists the CT3 trunk card LEDs and their functions. Table 3-1 CT3 Trunk Card LED Indicators LED Color Description PWR Green Power—Lights when power is ON. MAINT Yellow Maintenance—Lights to indicate that the feature card is ready for OIR. HCPU Green Host CPU—Lights when the associated host CPU is determined t
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Chapter 3 Channelized T3 Trunk Card CT3 Trunk Card Overview Table 3-1 CT3 Trunk Card LED Indicators (continued) LED Color Description RALM Yellow Remote alarm—Lights to indicate a T1 alarm condition was encountered by software for a particular port; remains OFF when the operating condition is normal. NLOOP Yellow Network loop—Lights to indicate that at least one T1 is unavailable (status indicator); remains OFF when the operating condition is normal. 1 T3EN Green Enable—Lights to indicate a
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CHANNELIZED T3 Chapter 3 Channelized T3 Trunk Card Using the Test Port Figure 3-4 CT3 Trunk Card Front Panel Connectors Receive BNC connector Transmit BNC connector Transmit DSx1 bantam jack connector Receive DSx1 bantam jack connector Cables The CT3 trunk card receives and transmits 45 Mbps signals through a 75-ohm cable, using common BNC coaxial cable connectors (see Figure 3-5). There are two female BNC connectors: one for T3 transmit data and one for T3 receive data. Figure 3-5 CT3
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Chapter 3 Channelized T3 Trunk Card Using the Test Port Trunk Card Bantam Jacks The test port is a set of bantam jack connectors located at the bottom of the CT3 front panel (see Figure 3-4). The bantam jacks allow the connection of an external test device (for example, a FIREBERD test device) to test any of the 28 individual T1 circuits in drop-and-insert mode or to monitor an individual T1 circuit in monitor mode. • In drop-and-insert mode, the T1 line is dropped out of service. To preven
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Chapter 3 Channelized T3 Trunk Card Using the Test Port Monitor Mode To monitor a particular T1 line at the test port, follow these steps: Step 1 Verify that drop-and-insert mode is disabled on the CT3 controller by entering the show command, as follows: AS5800# sh controller t3 shelf/slot/unit The following is sample output from the sh controller t3 command if drop-and-insert mode is disabled: AS5800# show controller t3 1/1/0 T3 1/1/0 is up. Applique type is Channelized T3 No alarms detect
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Chapter 3 Channelized T3 Trunk Card Using the Test Port Specifications Table 3-2 lists the CT3 trunk card specifications. Table 3-2 CT3 Trunk Card Specifications Description Specification Dimensions H x W x L 15.4 x 0.08 x 18.7 in. (39.12 x 0.203 x 47.5 cm) without the carrier 15.5 x 1.23 x 19 in. (39.37 x 3.12 x 48.26 cm) with the carrier Weight 8 lb (3.6 kg) Transmission bit rate 44,736 Mbps 1 MTBF Exceeds 50,000 hr Power requirements +3.3 VDC, 8A, 5% +5.0 VDC, 15A, 5% Regulatory complian
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CHANNELIZED T3 Chapter 3 Channelized T3 Trunk Card Using the Test Port Figure 3-6 CT3 Trunk Card BNC Cable Connections Receive BNC connector Transmit BNC connector Transmit DSx1 bantam jack connector Receive DSx1 bantam jack connector Step 2 Attach the network end of your CT3 cable to your external network. Configuring Cable Length When you configure your CT3 trunk cards, you must include the length of the cable connected to the card. To specify this length, use the cablelength command
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Chapter 3 Channelized T3 Trunk Card Configuring the CT3 Trunk Card To complete the hardware installation, verify that the trunk card LEDs operate properly by observing the following LED states: • The power LED is ON. If the power LED remains OFF, verify that the card is seated properly. If the power LED lights on other trunk cards in the dial shelf, try inserting the trunk card in a different slot. If none of the power LEDs lights, check your dial shelf power connections, power entry module
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Chapter 3 Channelized T3 Trunk Card Configuring the CT3 Trunk Card Table 3-3 T3 Configuration Commands Command Description AS5800> enable Step 1 Enter the enable command. Password: password Enter your password. AS5800# You are in privileged EXEC mode when the prompt changes to AS5800#. Step 2 AS5800# configure terminal Enter global configuration mode by entering the Enter configuration commands, one per configure terminal command. The example uses the line. End with CNTL/Z. terminal configur
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Chapter 3 Channelized T3 Trunk Card Configuring the CT3 Trunk Card Table 3-3 T3 Configuration Commands (continued) Command Description AS5800(config)# dial-tdm-clock priority Step 13 Configure clock priority, which is a value from 1 to 50. {1-50} {external | trunk-slot} {0-5} Select a clocking source by selecting an external ds3-port 0 port {1-28} reference clock or a trunk card. If you are using an external reference clock, no other CLI is needed. If you are using a trunk card, select a di
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Chapter 3 Channelized T3 Trunk Card Configuring the CT3 Trunk Card AS5800# show controller t3 T3 1/0/0 is up. Applique type is Channelized T3 No alarms detected. FEAC code received: No code is being received Framing is M23, Line Code is B3ZS, Clock Source is Line. Data in current interval (751 seconds elapsed): 0 Line Code Violations, 0 P-bit Coding Violation 0 C-bit Coding Violation, 0 P-bit Err Secs 0 P-bit Severely Err Secs, 0 Severely Err Framing Secs 0 Una
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Chapter 3 Channelized T3 Trunk Card Configuring the CT3 Trunk Card A typical T3 controller configuration in a running-configuration file appears as follows: T3 controller configuration: ---------------------------- controller T3 1/0/0 framing m23 clock source line cablelength 224 t1 1 controller t1 2 controller t1 3 controller t1 4 controller t1 5 controller t1 6 controller t1 7 controller t1 8 controller t1 9 controller t1 10 controller t1 11 controller t1 12 controller t1
