Browse Prior Art Database

Communications Playback on a Non-Communications System

IP.com Disclosure Number: IPCOM000050175D
Original Publication Date: 1982-Sep-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 46K

Publishing Venue

IBM

Related People

Hung, CY: AUTHOR

Abstract

Previously recorded communications data in a computer system having a communications subsystem can be played back under the present arrangement on a system not having a communications subsystem. Normally, communications data trapped in a manner described in] 1 is played back for analysis to a computer system (Fig. 1) having a communication subsystem. The reference characters in Fig. 1 correspond to the reference characters in Fig. 1 of 1 except that the reference number 10 in Fig. 1 of this article refers to a communication trap device having a tape 11 on which previously trap communication data has been recorded.

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Communications Playback on a Non-Communications System

Previously recorded communications data in a computer system having a communications subsystem can be played back under the present arrangement on a system not having a communications subsystem. Normally, communications data trapped in a manner described in] 1 is played back for analysis to a computer system (Fig. 1) having a communication subsystem. The reference characters in Fig. 1 correspond to the reference characters in Fig. 1 of 1 except that the reference number 10 in Fig. 1 of this article refers to a communication trap device having a tape 11 on which previously trap communication data has been recorded.

In Fig. 1, the output of the EIA 12 from the communication trap 10 is connected to the communication adapter through bus 21. SCA (System Control Adapter) 60 sends out control signals via SCA bus 61 to select the communication common card 30. SCA 60 activates the communication adapter unique diagnostic address and gates a TAPS (Timing Analysis Procedure) line, as illustrated in the timing diagram of Fig. 3. Communication common card 30 responds by activating the TAPS sync line. The customer engineer (CE) performing the operation switches on the communication trap to playback the previously recorded teleprocessing (TP) signals to the communication adapter. The TP signals are then gated, repowered and sent to SCA 60. SCA 60 uses the clock to extract the data to be sent to an internal data communications trap program residing in processor 80 for error analysis. The internal data communications trap is described in 2 .

The technology adapter in Fig. 2 enables the CE to playback...