182 MaintenanceItem tested DescriptionDS-30X Interface Tests shared memory and performs loopback test over SD-30 LCA.On-board DSP card Checks the presence of DSP cards and initiates diagnostic testson DSP cards, if present.PCMCIA hard drive Checks the presence of the hard drive and checks the configurationinformation.PCMCIA Flash card Checks the presence of Flash memory and checks configurationinformation.Loopback MPU Sends data to the transmit area of the MPU buffers and resends itback for the receive area to the same buffer.Loopback DSP Sends data to the transmit area of the MPU buffers and resends itback for the receive area to the same buffer.Signaling TestsSignaling tests check the x12 interfaces in both directions between the cardand system. This test includes reception of the messages from the systemand sending messages to the system. The Signaling test is executed fromOverlay 30 using the UNTT command (Meridian 1/CS 1000) or from the IPEMAP Level using the Tst command (CS 2100/Meridian SL-100).Sanity monitoringSanity monitoring is a background routine that checks the operationof system resources, such as CPU activity and memory allocation.This background routine tries to restore normal operation if the systemperformance has degraded to an unacceptable level. If all attempts torestore normal operation fail, this routine restarts the system to restoreoperation. If the soft reset is not effective, the system initiates a full,board-level reset. If the full reset is not successful, the maintenance LEDremains on.Diagnostic commandsMeridian 1/CS 1000 overlay commandsEach card performs diagnostic tests as part of the daily routines. Diagnostictests can also be activated from a maintenance TTY.The boot time of the ICB from reset, or power up, to when the card is readyand from an ENLC to when the ports are idle is approximately two minutes.All relevant system maintenance commands for an extended digital line cardapply to the ICB and are handled transparently to the system. Use LD32to enable and disable an ACD M2616 telephone.Nortel Communication Server 1000/Communication Server 2100 Solution/Meridian SL-100Nortel Integrated Conference Bridge: Service Implementation FundamentalsNN43001-558/555-4001-135 01.02 StandardICB Release 4 20 June 2007Copyright © 2007, Nortel Networks.