NEC NDA-30115-001 manual Bisynchronous BSC Transmission, Timers, Sender Timer

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ArchitectureProperty Management System - Communication Interface

Timers

The following timers are used to maintain data transmission:

Sender Timer

Upon sending a start sequence, message text or query, this timer begins counting and stops counting upon receiving a valid answer control code. This timer is set to one (1) second. If a timeout occurs after the transmission of a start sequence, a start sequence will be resent up to 15 times. If a timeout occurs during the transmission of a message text or query, a query is sent up to 32 times.

Cabling Considerations

Receiver Timer

Upon transmission of a positive acknowledgment for a start sequence or a message text, this timer begins counting and stops counting upon receiving a message text or an end code. This timer is set to 35 seconds. If a timeout occurs, the sender loses send rights.

When the PMS is connected to the NEAX through a modem, the cables should just be “straight through” cables. There should be no crossing.

When the PMS is directly connected to the NEAX, use the following pin assignments:

NEAX
Pin No.	Signal			Cable
1	FG
2	SD
2	SD
3	RD
3	RD
4	RS
4	RS
5	CS
5	CS
6	DR

7SG

8CD

20ER

PMS

Signal Pin No.

FG 1

SD 2

RD 3

RS 4

CS 5

DR 6

SG 7

CD 8

ER 20

Figure 2-4 Direct Connection Pin Assignments

Bisynchronous (BSC) Transmission

Line Control	The characteristics of the signals transmitted across the communications link are as
Characteristics	follows:

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NDA-30115 Revision 1.0

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Contents Property Management System NEC America, IncLiability Disclaimer Table of Contents NDA-30115 Revision Contents Contents List of Figures FIGURESProperty Management System Communication Interface Tables Title Chapter Overview This Page Left Blank Chapter Architecture Line Control CharacteristicsAsynchronous Transmission Transmission Protocol ‘1’ ‘!’ 05H02H ‘1’ ‘!’ ‘L’ 03H Message Count Range Block Check Code Range Transmission Sequence From the Neax to the PMS SequenceFrom the PMS to the Neax Timers Sender TimerCabling Considerations Receiver Timer Bisynchronous BSC TransmissionEbcdic SYN STXETX ACK0Transmission ProtocolNDA-30115 Revision Neutral a ACK0 NAK ENQ Waiting for ACK last STX BReceived Waiting for NAK ACK0/1 ETX, CRCNeutral a ENQ D Waiting for NAK EOT a 25 sec EOT Waiting for EOT aTimers Retransmission Counts Counters Timer ValuesST2 ST1 Pin No Signal Cable 20 ER 24 ST1Cabling Considerations Data Link Maintenance Message DescriptionsNDA-30115 Revision NDA-30115 Revision Maid Status Check In/Check Out Model Message Waiting Lamp ControlRestriction Control Check In/Check Out Model Wake Up/Group Announcement Room Move/Swap/Copy ModelRoom Data Change Extension ReportRoom Recovery Model Direct Data Entry Model Extension Connection This Page Left Blank Message Formats Data Link Maintenance 02H ‘1’ ‘!’ ‘L’ ‘7’ ‘0’ ‘0’ ‘7’ Blank 03H Multiple Function Codes use this message. See belowCleaning 02H ‘1’ ‘!’ ‘L’ ‘1’ ‘7’ Extension Maid 03HLEN Guest Room02H ‘1’ ‘!’ ‘L’ ‘5’ ‘1’ ‘2’ ‘3’ Extension Maid Room Status Cleaning 03H Room Answer02H ‘1’ ‘!’ ‘L’ ‘5’ ‘1’ ‘2’ ‘0’ Extension RequestAdministration 02H ‘1’ ‘!’ ‘L’ ‘5’ ‘2’ ‘2’ ‘3’ Extension MaidMWL Control 02H ‘1’ ‘!’ ‘L’ ‘3’ ‘1’ ‘1’ Extension 03HMWL Status 02H ‘1’ ‘!’ ‘L’ ‘5’ ‘3’ ‘1’ ‘5’ ‘1’ Extension StatusOption VMC02H ‘1’ ‘!’ ‘L’ ‘1’ ‘5’ ‘1’ ‘4’ Extension Code Blank 03HCheck 02H ‘1’ ‘!’ ‘L’ ‘1’ ‘6’ ‘1’ ‘1’ Extension 03HCheck Out Message Report Check Out02H ‘1’ ‘!’ ‘L’ ‘1’ ‘6’ ‘1’ ‘1’ ‘2’ Extension 03H VIP 02H ‘1’ ‘!’ ‘L’ ‘1’ ‘6’ ‘3’ ‘4’ ‘B’ Extension Group ID Language Stay Display Name 03HCheck Out Outgoing Call Report 02H ‘1’ ‘!’ ‘L’ ‘1’ ‘6’ ‘1’ ‘1’ ‘C’ Extension 03HCheck Out Message Waiting Report 02H ‘1’ ‘!’ ‘L’ ‘1’ ‘6’ ‘1’ ‘3’ ‘D’ Extension StatusCleaning Status Key Language Display Name Data a Data B 03HNDA-30115 Revision Cleaning Status Key 03H 02H ‘1’ ‘!’ ‘L’ ‘5’ ‘6’ ‘1’ ‘4’ ‘2’ Extension Room StatusCheck Cancellation Check Out CancellationRoom Status Cleaning Key 03H 02H ‘1’ ‘!’ ‘L’ ‘5’ ‘6’ ‘1’ ‘1’ ‘4’ Extension 03HKey New Extension Room Status Cleaning Status 03H Room ChangeProvisional Check 02H ‘1’ ‘!’ ‘L’ ‘5’ ‘6’ ‘1’ ‘1’ ‘7’ Extension 03H02H ‘1’ ‘!’ ‘L’ ‘5’ ‘6’ ‘1’ ‘5’ ‘9’ Extension Status Provisional Check Out02H ‘1’ ‘!’ ‘L’ ‘5’ ‘6’ ‘1’ ‘1’ ‘8’ Extension 03H Source 03H Wake Up Setting Neax02H ‘1’ ‘!’ ‘L’ ‘1’ ‘9’ ‘1’ ‘6’ ‘1’ Extension Time Wake Up Cancellation Neax 02H ‘1’ ‘!’ ‘L’ ‘1’ ‘9’ ‘1’ ‘6’ ‘2’ Extension BlankResult 03H Wake Up Execution Result02H ‘1’ ‘!’ ‘L’ ‘1’ ‘9’ ‘1’ ‘6’ ‘3’ Extension Time Wake Up Setting PMS 02H ‘1’ ‘!’ ‘L’ ‘1’ ‘9’ ‘1’ ‘6’ ‘4’ Extension TimeWake Up Cancellation PMS 02H ‘1’ ‘!’ ‘L’ ‘1’ ‘9’ ‘1’ ‘6’ ‘5’ Extension BlankSource Type 03H Group Announcement Setting Neax02H ‘1’ ‘!’ ‘L’ ‘1’ ‘9’ ‘1’ ‘7’ ‘6’ Group ID Time Group Announcement Cancellation Neax 02H ‘1’ ‘!’ ‘L’ ‘1’ ‘9’ ‘1’ ‘6’ ‘7’ Group ID BlankTime Result Type 03H Group Announcement Execution Result02H ‘1’ ‘!’ ‘L’ ‘1’ ‘9’ ‘2’ ‘3’ ‘8’ Extension Group ID Group Announcement Setting PMS 02H ‘1’ ‘!’ ‘L’ ‘1’ ‘9’ ‘1’ ‘7’ ‘9’ Group ID TimeGroup Announcement Cancellation PMS 02H ‘1’ ‘!’ ‘L’ ‘1’ ‘9’ ‘1’ ‘6’ ‘A’ Group ID BlankMessage fields are 35 Room Move/Swap/CopyRoom Data Change 02H ‘1’ ‘!’ ‘L’ ‘2’ ‘1’ ‘1’ ‘3’ ‘1’ Extension LanguageGroup Formation 02H ‘1’ ‘!’ ‘L’ ‘2’ ‘1’ ‘1’ ‘7’ Extension Group ID 03HReservation Cancellation Group CancellationReservation Setting Guest Name Change 41 Guest Name ChangeNDA-30115 Revision 02H ‘1’ ‘!’ ‘L’ ‘6’ ‘1’ ‘1’ ‘3’ ‘3’ Extension Room Status Cleaning Status 03HRoom Status Change Room Key Status Change 02H ‘1’ ‘!’ ‘L’ ‘6’ ‘1’ ‘1’ ‘2’ ‘4’ Extension Key 03HExtension Delete Report 02H ‘1’ ‘!’ ‘L’ ‘1’ ‘7’ ‘1’ ‘3’ ‘E’ Extension Blank 03HClass 03H Extension Assignment Report02H ‘1’ ‘!’ ‘L’ ‘1’ ‘7’ ‘1’ ‘3’ ‘F’ Extension Def Room Recovery Model Status Code Blank 03H Room Image Set02H ‘1’ ‘!’ ‘L’ ‘1’ ‘7’ ‘2’ ‘8’ Extension Vacancy 02H ‘1’ ‘!’ ‘L’ ‘1’ ‘7’ ‘2’ ‘3’ Extension Vacancy Status 48 Room Image SetVIP 02H ‘1’ ‘!’ ‘L’ ‘1’ ‘7’ ‘3’ ‘8’ Extension Vacancy 49 Room Image SetVIP Room Data Report 50 Room Data ReportNDA-30115 Revision Connecting Room Guest Room Secretary Telephone02H ‘1’ ‘!’ ‘L’ ‘5’ ‘7’ ‘1’ ‘7’ ‘3’ Boss Secty 03H 02H ‘1’ ‘!’ ‘L’ ‘5’ ‘7’ ‘1’ ‘7’ ‘4’ Master Secondary 03HMessage Status Report 02H ‘1’ ‘!’ ‘L’ ‘5’ ‘7’ ‘1’ ‘5’ ‘5’ Extension StatusWake Up 02H ‘1’ ‘!’ ‘L’ ‘5’ ‘7’ ‘1’ ‘6’ ‘6’ Extension TimeDirect Data Entry 02H ‘1’ ‘!’ ‘L’ ‘5’ ‘9’ ‘4’ ‘7’ ‘1’ Extension Numeric InputDirect Data Entry Answer 02H ‘1’ ‘!’ ‘L’ ‘5’ ‘9’ ‘1’ ‘7’ Extension02H ‘1’ ‘!’ ‘L’ ‘6’ ‘2’ ‘1’ ‘7’ Boss Secty 03H 57 Guest Room Secretary TelephoneConnecting Room Set Connecting Room Cancel02H ‘1’ ‘!’ ‘L’ ‘6’ ‘2’ ‘1’ ‘7’ ‘3’ Master Secondary 03H 02H ‘1’ ‘!’ ‘L’ ‘6’ ‘2’ ‘1’ ‘1’ ‘4’ Master 03HThis Page Left Blank Chapter References This Page Left Blank Chapter Glossary BCCGlossary Property Management System Communication Interface Appendix a Room Status Dial Steps for Maid Status Updating Room Status Information in the NeaxClearing Room Data Status of Check Out Room Status and Cleaning StatusRoom Data Setting and Clearing in the Neax A-4 NDA-30115 Revision Appendix B PMS Line Failure Printouts Normal TextAbnormal Events Abnormal PortLine SUP. Timeout PKG not ReadyDR OFF/TX not RDY Sinq STOP/S-120Figure B-6 I/O Port Status Transmission Failure FC of message Message Data Current TimeB-6 NDA-30115 Revision Appendix C Feature Codes Data Link MaintenanceC-2 NDA-30115 Revision Appendix D Function Codes Neax ALLPMS ALL PMS/NEAX ALLCheck In Cancellation Check Out CancellationRoom Image Set 1 Recovery Request Room Image Set 1 Recovery AnswerRoom Image Set 3 Recovery Request Room Image Set 3 Recovery AnswerRecovery Room Data Report Recovery Secretary TelephoneConnecting Room Set Connecting Room CancelDirect Data Entry Positive Answer Guest Room Secretary Telephone