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Theory of Operation

2-9

Talk Tap:

The talk tap carries encoded information to indicate the branch

number and to identify the “autopoll” operating mode.

Note

Since the status information is block encoded, there is not a one-to-one
correspondence between status values and bits of the status words. The
condition of these bits are indicated on the status LEDs on the ACC and on
the display screens of the SDN instruments. See “SDN Status and Error
Conditions” on page 2-12.

Instrument Messages

Instrument messages originate in the instrument. These instrument
messages comprise of all the data broadcast on the SDN, such as
waveforms, derived parameters, alarm status, text messages, bed labels,
time-of-day, and many others. Instrument messages vary in length (i.e.,
number of words) but always consist of the following structure.

Instrument Delimiter:

The instrument delimiter is a unique 12-bit word

(110010011111) used to mark the beginning and the end of the message.

Header:

The header is always four words long (48 bits) and is used to

label the content of the message body. The second word is called the
“signature.” Listening instruments examine the signature to determine
whether they want to capture this message.

Body:

The body of the instrument message contains the actual data. The

number of data words in the body depends upon the type of message being
sent.

INSTRUMENT

DELIMITER

HEADER

BODY

INSTRUMENT

DELIMETER

HEADER

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Содержание 78581B

Страница 1: ... Part Number 78581 92000 Printed in the U S A February 1 2001 First Edition Installation and Service Guide Agilent Serial Distribution Network SDN 78581B Agilent CareNet Controller ACC ...

Страница 2: ...to the implied warranties or merchantability and fitness for a particular purpose Agilent Technologies shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material Printing History New editions of this document will incorporate all material updated since the previous edition The documentation printi...

Страница 3: ...Use of Device 1 8 2 Theory of Operation 2 1 Overview 2 1 SDN Theory of Operation 2 2 SDN General Description 2 2 Logic Convention 2 3 SDN Topology 2 5 Applications of SDN Operation 2 6 Instrument Communication on the SDN 2 6 SDN Timing Overview 2 7 Autopoll Mode 2 8 SDN Data Structure System and Instrument Messages 2 9 System Messages 2 9 Instrument Messages 2 10 SDN Normal Operation 2 11 SDN Data...

Страница 4: ...ures 3 12 Reverification Instructions 3 13 Cable Verification Procedures 3 13 Hardware Problems 3 14 Verify Instrument End of the Branch Cable 3 14 Verify Proper Operation of Priority Wires 3 15 SDN Bedside 3 15 Ground Check Procedure 3 16 4 ACC Maintenance 4 1 ACC Maintenance 4 1 ACC Failure Power Up and Power Down Procedures 4 1 5 Parts List 5 1 Part Numbers 5 1 6 Component Installation and Disa...

Страница 5: ...res Wall Boxes and Branch Cables 8 9 Install Branch Cable Enclosures 8 9 Selecting Conduit Size 8 9 Formula 8 10 Example 8 10 Install Standard NEMA Switch Wall Boxes 8 11 Install Branch Cables 8 11 SDC Standard System Distribution Cable 8 12 XSDC Extended System Distribution Cable 8 12 Unshielded Twisted Pair Distribution Cable 8 12 SDC and XSDC Wall Box Connections 8 12 SDN on UTP Wall Boxes Conn...

Страница 6: ...N ACC System Safety 9 1 Compliance with IEC 60601 1 1 9 1 Device Grounding on the SDN 9 2 10 SDN ACC Specifications 10 1 SDN Specifications 10 1 ACC Specifications 10 3 Cleaning 10 4 System Symbols 10 4 Contacts 10 5 ...

Страница 7: ...2 and a typical SDN configuration is illustrated in Figure 1 2 on page 1 3 SDN Operation The SDN functions automatically without user interaction and without direct patient connections Digitized patient information from each instrument branch is transmitted serially at regular intervals called poll cycles over branch cables to the ACC The ACC sequentially receives synchronizes and rebroadcasts the...

Страница 8: ...iven in a subsequent section of this manual Within the connected instruments SDN interface circuitry provides the link between the serial digital network and the instrument connected to the SDN except the ACC has basically the same interface circuitry most of which is contained on a custom integrated circuit called the SDN Interface Circuit Chip SIC Chip A detailed description of the SIC Chip theo...

Страница 9: ... and patient information centers may be connected to the ACC providing the system is configured within the certain restrictions and limitations The ACC can accommodate up to 32 separate branch cables emanating from it to the wall boxes instruments Of the 32 total branches 24 may connect to HP and Agilent bedside instruments one patient per branch see note below 6 may connect to information centers...

Страница 10: ...circuitry residing in each instrument The ACC cannot store restrict or allocate specific distribution of SDN data The ACC controls the data communication sequence during the 32 millisecond poll cycle by issuing a variety of system messages that originate in the ACC A complete description of system messages instrument messages the SDN data communicating sequence and SDN bus direction control is des...

Страница 11: ...rd is connected and the ACC is running properly no operator adjustments are necessary The green power ON OFF indicator is visible on the rear When illuminated it indicates 5 volt power is available from the ACC power supply ACC Servicing The ACC has been designed for ease of servicing PC board and assembly replacement is the primary method of repair Troubleshooting tests and integrity routines are...

Страница 12: ...r mixing cable types is allowed Local Distribution Cables LDC The SDN allows ease and flexibility of user placement of instruments Local distribution cables LDC must be used for local serial connection from the wall box face plate to the instrument and to other instruments The LDC allows bedside instruments to be easily interchanged simply by connecting them to their new locations Wall Boxes and F...

Страница 13: ...iated instrument s service manual The ACC may be mounted on a standard 19 inch telecommunications rack It may also be wall mounted on a properly prepared wall using the wall mount kit M3180AI that permits the length of each branch cable to be within the specified length limitations No special tools are required for installation only screw drivers cable strippers and pliers are needed Environmental...

Страница 14: ...ated LDC M3199AI Installation Materials P01 UTP Plenum Orange Cat 5 Cable 1000 Feet J03 RJ45 to SDN Cable Connector M3180A Wall Mount Kit A14 Wall Mount Kit 78581 61257 Intended Use of Device The Signal Distribution Network SDN allows the sharing of patient physiological parameters and other electronic data among bedside instruments central station processors and displays recorders thermal printer...

Страница 15: ...a formatting assures compatibility between a variety of different instruments communicating together over the SDN The communication protocol and hardware implementation is intended to be flexible enough to accommodate a variety of communication needs in the patient monitoring environment for the present and for future expansion ACC Theory of Operation describes the detailed operating theory of the...

Страница 16: ...tions of the SDN terms are given below Term Definition SDN Data Physiological information such as parameters or waveforms or non physiological information such as bed labels annotation alarm messages or time of day Digital Using binary logic where a high voltage level is called a one 1 and a low voltage level is called a zero 0 Serial A string of ones 1 and zeros 0 in a row create defined words si...

Страница 17: ...pposite polarity These two wires are designated as positive and negative For a digital one 1 the positive wire is at a high voltage and the negative wire is at a low voltage vice versa for a digital zero 0 The voltage between these wires high to low 1 to 0 is approximately 3 volts 1 5V minimum 4V maximum Termination In order for differential signals to remain clean the length of the cable must app...

Страница 18: ...tive Wire Pink colored wire Negative Wire Blue colored wire Priority Wires LDC only Positive Wire Gray colored wire Negative Wire Black colored wire True State Black wire positive with respect to gray wire False State Black wire negative with respect to gray wire UTP Positive Wire Blue wire with white stripe Negative Wire White wire with blue stripe Ground Green wire ...

Страница 19: ...C Only one ACC may be used per SDN One SDN can accommodate up to 24 bedside instruments one patient per branch 6 information centers ICs and 2 computerized monitoring systems For details on specific operational and topological limitations refer to the Installation section A typical SDN configuration is illustrated below Figure 2 1 Typical SDN Configuration ...

Страница 20: ...des of which 42 are defined and 21 are reserved for future use The SDN is flexible enough to accommodate configuration changes at the bedside instrument via plug in modules without any system modifications user interaction or hardware changes Also SDN instruments may be disconnected at any time and moved to other system locations and reconnected without bringing the network down Another applicatio...

Страница 21: ...ycle lasts 32 milliseconds Each poll cycle is made up of three distinct segments which are Sync Tap The sync tap acts as a system synchronization strobe It is sent by the ACC to all branches instruments simultaneously to synchronize the instrument s transceivers and to initiate the beginning of a new poll cycle The sync tap also contains coded status information 4 Ms Dead Time The 4 ms dead time i...

Страница 22: ...de and instrument messages that originate in the instruments System Messages System messages originate in the ACC System messages consist of three separate 12 bit words and have the following structure Flush The flush is a unique sequence of 12 bits 101010101010 that are used to clear the line of capacitive charging to ensure reliable detection of logic levels The flush word always follows any sil...

Страница 23: ...e SDN such as waveforms derived parameters alarm status text messages bed labels time of day and many others Instrument messages vary in length i e number of words but always consist of the following structure Instrument Delimiter The instrument delimiter is a unique 12 bit word 110010011111 used to mark the beginning and the end of the message Header The header is always four words long 48 bits a...

Страница 24: ...of data can be transmitted in every poll cycle Overhead time consists of the following a Sync tap 10µs b Dead time 4 ms c Time to listen for activity on each branch before sending a talk tap 3 33 µs per branch d Talk taps 10µs per branch e Time to listen for silence before going on to the next branch 12 22 µs per branch f Headers and delimiters in messages Instrument Status Message Once every syst...

Страница 25: ...ated sync tap indicates to the instruments on that branch that the branch is operating in Autopoll mode If the ACC becomes active again then the branch automatically returns to the SDN mode ONLINE OFFLINE The normal operating mode is ONLINE The ONLINE status indicates that an instrument has examined itself and is ready and able to operate reliably on the SDN At power up an instrument is OFFLINE Wh...

Страница 26: ... talk tap message If activity is detected during this time then no talk tap is sent and the ACC skips over that branch automatically and cuts it off from the rest of the SDN This condition is called fire axe and is indicated at the ACC by illuminating the yellow fire axe LED DS8 However if no activity is detected on a branch the ACC checks to ensure that the SDN bus is biased correctly in the low ...

Страница 27: ...0 is set up for a TALK TAP message by first sensing the branch for activity and line state polarity 1 or 0 If activity is sensed within a 2 7 microsecond window or the line is in the logic 1 state then the branch is considered faulty FIRE AXE condition and is skipped over without a TALK TAP being issued However if no activity is sensed a TALK TAP message is transmitted out the branch in which the ...

Страница 28: ...are 32 ports label from 0 through 31 Port 0 is the master time port for the central stations Ports 1 through 24 are bedside ports Ports 25 through 31 are for other central stations computers or mainframes The transition board supplies the input output data from the bedside to and from other devices Power Supply M2604 60002 This is a 5V automatic switch power supply It supplies power for the main P...

Страница 29: ...oring and to avoid and to determine the need for bringing down the entire SDN communications system When troubleshooting a new SDN system installation not a patient connected SDN system it may be more expedient to power down the ACC in order to checkout the cables and swap the Control Driver PC board in the ACC Discretion must be applied according to the constraints of the situation The content of...

Страница 30: ...Central Station LDC Local Distribution Cable LDN Local Distribution Network M T Monitor Terminal an SDN Bedside NT Network Test IC Information Center ACC Agilent CareNet Controller SDC System Distribution Cable XSDC Extended System Distribution cable SDN Serial Distribution Network SDNIF SDN Interface A simplified block diagram of the SDN system components is shown in the following Figure 3 1 SDN ...

Страница 31: ...strument Service Manuals A flat blade screwdriver and a 50 foot LDC are recommended when troubleshooting the components of the SDN system ÿþýüûúùø öõôóùùòñðïüîöùíìóëúò The SDN troubleshooting steps are outlined in a simplified SDN system troubleshooting flowchart illustrated on page 3 4 Follow the steps indicated in the sequence shown Until you are familiar with the troubleshooting flowchart proce...

Страница 32: ...Test 3 Error and INOP messages 4 FIREAXE and overflow LEDs Step 4 Instrument Self Test FIRE AXE LED on Troubleshoot ACC and cable Not all Troubleshoot ACC Troubleshoot instrument How many instruments are on the branch Step 5 Isolate to one instrument on branch No Troubleshoot instrument See product s service manual Single Branch SDN interface cable or ACC Troubleshoot ACC How many instruments on t...

Страница 33: ...his in mind start by looking for the obvious product malfunctions To do this use the resources available and evaluate the results Assure that the instrument is SDN connected Examine INOP messages and error codes Check FIRE AXE and OVERFLOW LEDs in the ACC SDN Connections Evaluate the results of the resources listed above to determine if there is an SDN or non SDN problem before continuing with thi...

Страница 34: ...reen has stopped communicating on the SDN The message remains until the bed returns or display is cleared with the CLEAR hard key or until NEXTBED softkey is used to view another bed Indicates discontinued or cut off data Displayed in sector s for which no data is available in inverse video If the patient has been moved or discharged there are several ways to clear this message Tune the sector to ...

Страница 35: ...leshooting one IC in an IC group if the others are remaining connected to the network If the FIRE AXE LED in the ACC is illuminated or flickering look for a noisy branch See Cable Verification Procedures on page 3 13 If SDN communication errors are indicated and if no specific product is immediately identified then go to STEP 3 Evaluate the Breadth of the Problem on page 3 8 SDN Related Problems N...

Страница 36: ...hen a multiple branch problem is indicated Action If more than one branch cannot receive at all or transmit at all then troubleshoot the ACC Refer to the ACC Troubleshooting section Other possible sources of multiple branch problems lower probability are given on page 3 12 If only 1 branch cannot receive at all or transmit at all then go to STEP 4 Other possible sources of single branch problems l...

Страница 37: ...tails Some codes identify faulty instrument circuitry If an instrument malfunction is indicated troubleshoot that product s SDN interface according to the instructions described in the associated product s service manual Figure 3 4 SDN Instrument Malfunction If no specific instrument malfunction is indicated refer to the following figure M T or IC SDN Interface Branch Specific Circuitry in the ACC...

Страница 38: ... instrument s self test routine b ACC components which are branch specific c Cables Connectors LDC wall box SDC connection to ACC In order to verify which part of the branch is faulty it is now necessary to swap the branch with a known good branch At ACC disconnect RJ45 connectors and jump wires to an unused branch Caution CAUTION Ability to view swapped monitor terminal If the unused branch is no...

Страница 39: ...1 through 24 Make sure that the unused branch does not have a telemetry bedside assigned to it If a monitor terminal is placed on branches 0 or 25 through 31 the message SDN COMMUNICATION ERROR ILLEGAL BED NUMBER will be displayed The bedside will be able to receive data but will not be able to transmit data For an IC the unused branch must be branch 0 or 25 through 31 Make sure that the unused br...

Страница 40: ...y disappear and reappear on the Network Test or their status may change from 001 C Noisy branches can be identified by low voltage levels below ground and high levels above 5V Proceed with cable verification procedure specified on page 3 13 c Hospital ground may not meet the system specification If this is suspected refer to the ground check procedure on page 3 13 d The hospital has installed cabl...

Страница 41: ... on the SDN and are able to transmit the proper instrument status message The Network Test shows all instruments on the system except the instrument displaying the test regardless of Care Unit definition or IC tuning limits To verify the monitor terminal View this bed at another monitor terminal or at an IC To verify an IC View hard wired telemetry bedside monitors on a monitor terminal in the OVE...

Страница 42: ...onitor terminal and identifies opens in the data wires and verifies proper operation of priority wires Miswiring of blue and pink data wires is evident This procedure is valid whether or not instruments are connected to the branches Refer to the following section Verify Instrument End of the Branch Cable Check for opens between the ACC and instrument a Disconnect the local distribution cable LDC f...

Страница 43: ...strument on the branch as indicated on the following connector pins Refer to the connector pin illustrations shown in Figure 3 6 MEASUREMENT NOMINAL VOLTAGE MEASURED WITH DVM PIN C to PIN B 3 0V PIN C to PIN D GND 0 6V PIN B to PIN D GND 3 6V PIN C to PIN A or PIN E PIN B to PIN A or PIN E SDN Bedside PIN A DATA WIRE PINK positive PIN B PRIORITY WIRE BLACK negative PIN C PRIORITY WIRE GRAY positiv...

Страница 44: ...ng problem exists on a given branch without taking the whole system down a At the end of the branch cable in question turn off and unplug the instruments using that branch b Measure the voltage between the ground coming through the SDN wall box and the third wire ground of each instrument s wall outlet The value measured on an voltmeter must not exceed 500 mV RMS 78534A Monitor Terminal Downstream...

Страница 45: ...r during a power failure the system communications is interrupted If any of the branches have more than one instrument daisy chained on that branch the local distribution network LDN takes over and allows the daisy chained instruments to communicate with each other in the autopoll mode When power is cut off to the ACC the following occurs to the instruments connected to the SDN branches When power...

Страница 46: ...ACC Maintenance 4 2 ...

Страница 47: ...rts List Part Numbers Figure 5 1 SDN Faceplate Connector Kits Component Locations 78599AI J01 JO2 and J53 Figure 5 2 SDN Faceplates Single or Dual Gang Wall Box Minimum Depth 2 3 4 in Single Gang 78581 00150 Dual Gang 78581 00160 ...

Страница 48: ... Local Distribution Cables LDC Figure 5 4 Power Supply Assembly M2604 60002 Figure 5 5 Variable Length LDC Kit 78599A J50 Jade Gray Cocoa Brown 3 ft 78599AI J03 8120 3591 6 ft 78599AI J06 Cable Clamp Solid Backshell Upstream Male Plug Connector ...

Страница 49: ...C and XSDC System Distribution Cables LDC Cable Not Included in Kit Order Cable Separately AS 78599AI J54 Cable Clamp Solid Backshell Upstream Male Plug Connector Downstream Male Plug Connector Filler Strips Pink Wire Braided Shield SDC or SXDC Drain Wire Foil Blue Wire ...

Страница 50: ...2 Power supply 78581 61257 Wall mount 78581 61080 Second ground wire 78581 61251 Cover assembly 78581 61250 Chassis assembly 78581 61256 LED cable assembly 78581 60350 RJ45 to SDN cable 78581 61254 Transition board cable 78581 61255 Power cable assembly 2110 0454 Pico fuse 7A Main PCB Braided Shield SDC or SXDC Drain Wire Pink Wire RJ45 Connector Blue Wire M3199AI Option J03 78581 60350 Connector ...

Страница 51: ...ell as the detailed installation instructions for installing the parts of the SDN An overview of the SDN and ACC installation system communication verification procedures and the recommended installation sequence to follow is given on page 7 8 Within certain limitations various combinations of bedside monitors and central station displays may be connected to the SDN via branch cables The instrumen...

Страница 52: ... and verification are given in this section Refer to the Site Preparation Check Lists shown on page 7 1 to ensure proper timing of installation requirements and materials Customer Installation Responsibilities Determine the SDN system configuration assisted by Agilent Technologies sales service personnel Order the Agilent CareNet Controller ACC LDCs LDC connector kits and faceplates installation o...

Страница 53: ...Mount a plywood panel 40 6 cm wide x 50 8 cm high x 1 9 cm deep minimum 16 in W x 20 in H x 3 4 in D to wall surface at the chosen ACC site location DO NOT MOUNT ACC TO WALL SURFACE Install branch cables from plywood panel ACC site location to the switch wall boxes Leave at least a 4 foot service loop at the plywood panel ACC Supply certification of Category 5 UTP installation to Agilent installer...

Страница 54: ...Installation Responsibilities Customer and Agilent Technologies 6 4 ...

Страница 55: ...Site Preparation Installation Checklists 7 1 Section 7 Site Preparation Installation Checklists Introduction The following pages contain the checklists for site preparation and installation ...

Страница 56: ... away ___ Architect aware that Agilent Technologies recommends NEMA conduit switch wall boxes with a minimum depth of 7 cm 2 3 4 in with conduit knockouts such as RACO 560 or 562 ___ Architect aware that builder must supply and install Bedside and Information Center wall boxes ___ Architect given dimension of the SDN Agilent CareNet Controller ACC ___ Architect aware that plywood panel must be mou...

Страница 57: ... do the job Refer to Install Branch Cables on page 8 11 for cable ordering information and order the associated spools to accommodate branch cable run requirements NO SPLICING CONTINUOUS CABLE RUNS ONLY ___ Architect aware that the builder must install cables and cable enclosures when necessary ___ Confirmed day scheduled for patient monitoring equipment installation with hospital personnel assign...

Страница 58: ...CO 560 or 562 ___ Outline dimensions and specifications given to plant engineer architect of recommended NEMA bedside switch wall boxes such as RACO 560 or 562 ___ Plant engineer electrician aware that cable pulling is the responsibility of the hospital and pull boxes are required local electrical code at recommended intervals based on number of conduit bends and cable length ___ Plant engineer el...

Страница 59: ...ing to bed numbers have been received Order at least 10 overrun to prevent getting a cable too short to do the job NO SPLICING CONTINUOUS CABLE RUNS ONLY ___ Confirmed move in date with administrator and electrician ___ Confirmed move in date with head nurse so that patients in wing will be assured minimum discomfort while the installation is being made ___ The clerk of the works has a move in day...

Страница 60: ...it and that AC power diathermy cables and so on should be run far enough away to prevent interference at least 0 3 m 1 ft away ___ Builder aware that Agilent Technologies requires NEMA conduit switch wall boxes at each bedside station remote station and possibly at the Patient Information Center ___ Builder aware that Agilent Technologies will supply faceplates for standard NEMA switch wall boxes ...

Страница 61: ...been established and proper receptacles provided Proper hospital grade connector has been selected and Agilent representative notified of selection ___ Grounding precautions have been taken ___ A separate circuit capable of handling present and future loads has been installed Miscellaneous ___ Review definition of Care Units bed labels and tuning ranges with hospital personnel ___ Variable length ...

Страница 62: ...tion system have been received and delivered to the appropriate installation site Review SDN system configuration Standalone Instrument Verification and Installation Unpack the instruments at their installation location Follow the detailed unpacking instructions supplied with each instrument It is recommended that proper operation of the instrument be verified prior to mounting Use the performance...

Страница 63: ...function of the IC Refer to the detailed procedures given in the IC documentation Ensure that each SDN bedside instrument is in Demo Mode If instruments are missing note their branch numbers and refer to SDN and ACC System Level Troubleshooting on page 3 1 Practical Checks At each SDN bedside verify that the UNIT ROSTER and BED LABEL correspond with what the hospital staff wants at that location E...

Страница 64: ... device No visible damage V P or V F Where P Pass and F Fail Power On 1 Power on device 2 Examine all LED s on the main PCB for normal operation The following is normal operation LED condition DS6 Solid Red On DS5 Solid Green On DS1 Fast Flicker Red On DS2 Off Red DS3 Off Red DS4 Solid Red On DS8 Off Yellow DS7 Off Yellow Refer to Figure 8 1 Examine the green LED on the front of the unit and the L...

Страница 65: ...let power outlet The value should be less than or equal to 0 5V RMS OR Perform Safety 1 test on all the connected devices If yes done and record S P If no proceed to step 4 4 Look at all bedsides for either an attached secondary ground wire or a M1965A potential separator connected to each bed where the voltage was greater than 0 5V RMS If yes done and record S P If no proceed to step 5 5 Install ...

Страница 66: ...ent monitors and patient information center displays may be connected to the SDN providing the system is configured within the restrictions and limitations listed here Up to 24 patients may be connected to the SDN one patient per branch Up to 6 information centers ICs may be connected to the SDN Only compatible Agilent instruments may be connected to the SDN Up to 2 telemetry main frames can be da...

Страница 67: ...SDC system distribution cables must be supplied by Agilent No other type or brand may be substituted Each branch cable run from the ACC to a switch wall box must be continuous no splicing no mixing cable types Maximum branch cable lengths ACC to wall box SDC standard system distribution cable length must be less than 152 meters 500 feet This requires the use of M3199AI Option J03 XSDC extended sys...

Страница 68: ...any convenient central location that permits the length of each branch cable to be less than 152 meters 500 ft when using SDC cables with the exception of up to two 2 XSDC branch cable runs which can measure up to 304 meters 1000 feet each Branch cables extend from the ACC to the wall boxes If using UTP the length must be less that 90 meters 295 ft Warning Do not install within eight feet of a pat...

Страница 69: ...C 32 o F to 131 o F Humidity Up to 95 RH Altitude Operating to 4600 meters 15 000 ft Important Instructions Allow a minimum of 5 08 cm 2 in of clearance on top and bottom Allow a minimum of 1 m 3 ft of free space in for service access Do not mount in an unventilated area such as a closet or console Mount within 1 5 m 5 ft of an A C power source When disconnecting from power pull the cord cap Power...

Страница 70: ...ted with the cables entering from the side ACC Wall Mounting Procedures It is Agilent Technologies responsibility to mount the ACC to the plywood panel at the chosen location a Orient the mount on the wall so that the ACC has its connection ports pointing towards either side b Using the wall mount measure and mark on the plywood panel where the holes will be located Drill a 28 hole size 0 14 in at...

Страница 71: ...er lines air conditioning systems diathermy units and so on to minimize RF and AC interference The size of the cable enclosure is based on the size and number of branch cables running together in the enclosure The cable or group of cables may occupy up to 30 of the cross sectional area of the cable enclosure A simplified method for selecting the appropriate conduit size is illustrated in Table 8 1...

Страница 72: ...rd conduit sizes select the next largest size Example One 1 XSDC and two 2 SDC branch cables are to run together in one conduit What is the proper size conduit to use Conduit Cross Sectional Area 3 33 0 15 0 09 0 09 sq in Conduit Cross Sectional Area 1 10 sq in Therefore the 1 1 4 inch conduit 1 54 sq in should be used Table 8 1 Selecting Conduit Size Cables Diameter inches Nominal Cross sectional...

Страница 73: ...ables Agilent Technologies supplies three different spool lengths of SDC branch cable and two different spool lengths of XSDC branch cable The customer must determine the length of each branch cable run and add approximately 10 overrun Order the associated spools of branch cable to accommodate your branch cable requirements Refer to the following spool listing and associated part numbers The custo...

Страница 74: ...29 meter 750 ft part number 8120 3777 Unshielded Twisted Pair Distribution Cable UTP Orange Plenum Rated UTP cable 1000 M3199AI P01 SDC and XSDC Wall Box Connections It is the customer s responsibility to install standard NEMA switch wall boxes at convenient locations that are within the length limits of the local distribution cables LDC Minimum depth of the switch wall box must be at least 7 cm 2...

Страница 75: ...ded directly below the PC board connector assembly lay the PINK and BLUE wires over their respective terminal connectors and trim the ends at the appropriate length to allow the bare end of the PINK and BLUE wires to be wrapped clockwise three quarters of the way around the terminal screw g Strip off the insulation from the wire ends Using long nose pliers bend the bare wire end into a loop and at...

Страница 76: ...ly i Place the cable insulation with folded back braided wire on the bottom edge of the shield cover and clamp securely The braid should be securely fastened to ensure a good electrical connection between braid and shield j Attach the protective plate to the top of the shield cover using the two screws provided and tighten securely ...

Страница 77: ...nd typical European wall boxes minimum depth 4 0 cm 1 6 in SDN UTP single gang switch Wall Box Kits are shown below for both U S Options J12 and J13 and European Options JJ1 and JJ2 versions The kits include the following components 1 SDN UTP shield box with cover for SDN connection to UTP cable PCB assembly compatible with world wide requirements and screened twisted pair STP cable 2 PCB assembly...

Страница 78: ...Numbers 1 per ACC branch LDC Cable 78599AI Option J03 3 ft LDC cable Option J06 6 ft LDC cable Option J10 10 ft LDC cable Option J20 20 ft LDC cable 1 per ACC branch SDN UTP single gang wall box unit 78599AI Option J12 Quantity 1 Option J13 Quantity 8 Option JJ1 Quantity 1 European Option JJ2 Quantity 8 European SDN UTP dual gang wall box kit 78599AI Option J14 Quantity 1 Option J15 Quantity 8 1 p...

Страница 79: ...rp 200 Denton Drive Methuen Ma 01844 USA Phone 978 682 8870 Fax 978 682 4744 Provide the following information Part number HP 161851 Bill to address Ship to address Select the language and voltage you require for your application from the following list If no specification is made a North American 11O V version will be supplied North American French German Spanish Italian UK Australian Japanese 11...

Страница 80: ...rm final operational check Perform Final Operational Check 1 Plug in ACC 2 Inspect ACC for proper operation of LEDs 3 Turn on Central Station and all bedsides 4 Verify that all bedsides have functioning Overview screens 5 Verify that all bedsides are displayed at the Central Station If all instruments do not operate properly use the troubleshooting table below to correct the problem 6 Perform test...

Страница 81: ...h cable to patch panel 5 Perform final operational check Terminate UTP Cable at Patch Panel 1 Locate SCC 2 Locate SCC patch panel for new installation Patch panel must be within 8 feet of the SCC 3 Determine if UTP cable been terminated at patch panel If YES proceed to next section Terminate UTP Cable at Wall Box If NO terminate patch panel as follows 4 Terminate UTP cable at patch panel a Strip b...

Страница 82: ...e connector b Lay twisted pairs over edge connector c Using punch tool punch connector as shown below following color coding shown above If using a barrel style connector instead of a punch down style insert connector ends into appropriate slots of stuffer cap Make sure conductor ends are flush with back of conductor slots An optional stuffer punch down tool AMP 556706 1 can be used to insert wire...

Страница 83: ...ar SCC 4 Attach an RJ 45 patch cord between Microtest PentaScanner Tester and patch panel port to be tested 5 Turn on PentaScanner and start Autotest If tester displays Injector not found move RJ 45 patch cord until correct port is found This port should be labeled as that bed number 6 Perform Autotest see PentaScanner User s Guide for proper use of Microtest PentaScanner The following table gives...

Страница 84: ...90 meters Freq Mhz NEXT dB Attenuation dB 0 772 64 1 6 1 0 62 1 9 4 0 53 3 9 8 0 48 5 3 10 0 47 5 9 16 0 44 7 4 20 0 42 8 3 25 0 41 9 5 31 25 39 10 6 62 5 35 15 4 100 0 32 19 8 Tests Specifications Symptom Possible Cause Corrective Action Failed cable length test Cable 90 m 295 ft Install SDC or XSDC cable Failed noise test Noise sources close to UTP cable Install SDC or ScTP cable Failed splice i...

Страница 85: ...or receptacle to prevent accidental disconnection and to provide continuous shielding and ground path The standard length LDCs are listed below Table 8 2 Standard Length LDCs The variable length LDC is available to meet the installation requirements not fulfilled by the standard length LDCs The variable length LDC is terminated on one end with a standard gray color coded connector and open on the ...

Страница 86: ...and color coded to prevent erroneous connection The color on the connector end of the LDC is either GRAY DOWNSTREAM or BROWN UPSTREAM The upstream cable direction is from the instrument s towards the wall box ACC and the downstream cable direction is from the wall box towards the instrument s The LDC connectors and receptacles are illustrated in Figure 8 3 Figure 8 3 LDC Connections from Bedside I...

Страница 87: ... LDC The following procedures can be used to terminate the variable length LDC cable kit Agilent Technologies part number 78599AI J50 and also to terminate the 2 connector kit Agilent Technologies part number 785 99Al J52 and 78599Al J54 1 Measure and cut the open end of the LDC to the desired length Leave at least 0 3 meters 1 ft overrun to facilitate termination and instrument servicing 2 Insert...

Страница 88: ...o terminate the variable length SDC or XSDC cable You will need the 78599AI Option J52 kit From this kit use the supplied light gray male connector 1 Measure and cut the open end of the SDC or XSDC cable to the desired length Leave at least 0 3 meters 1 ft overrun to facilitate termination and instrument servicing 2 Insert the open end of the cable through the connector hardware as illustrated in ...

Страница 89: ...ve pin E 10 Slide the connector locking ring forward over the connector as far as possible 11 Screw the backshell onto the connector and tighten 12 Gently slide the cable clamp over the folded back braided shield and screw the clamp onto the backshell Do not twist the connector twist the cable clamp 13 Tighten down both cable clamps uniformly Trim off excess braided shield 14 After you create the ...

Страница 90: ...Procedures 8 28 ...

Страница 91: ...le or any non medical device in the patient care vicinity must provide the same level of safety as an individual medical device that complies with 60601 1 In practice this means that the combined chassis leakage current of a medical device and any directly interconnected device must be less than 500 µA 300 µA in the US If the combined leakage current exceeds 500 µA the system integrator is respons...

Страница 92: ...insure compliance with IEC 601 1 1 when connected to an SDN The second PE connection insures system safety When the ACC is powered using electrical conduit the conduit provides the second PE But when the ACC is powered using a power cord the second PE can be made using the green yellow wire exiting the ACC This wire should be connected to the building ground The SDN wall box provides for attachmen...

Страница 93: ...branch of the SDN one patient per branch with a maximum of six speedy cards ACC Branch Wiring ACC Branches 1 through 24 are dedicated for patient connected instruments Only one patient per branch ACC Branches 0 and 25 through 31 are dedicated for non patient connected instruments ICs and computer systems Wall Box Dimensions Only standard size NEMA single or dual gang switch wall boxes with conduit...

Страница 94: ... 152 meters 500 feet for SDC XSDC extended system distribution cable length must be less than 304 meters 1000 feet UTP cable length must be less than 90 meters 295 feet M3199AI option P01 Up to 2 separate XSDCs may be connected to the ACC Up to 2 local distribution cables LDC and 2 instruments may be linked to one branch Maximum total length of all LDCs on a branch must be less than 15 meters 50 f...

Страница 95: ... to 6 50 60 Hz Power Consumption 80 VA Heat Dissipation 51 6 kg cal hr 204 8 BTU hr Line Conditioning None Leakage Current Less than 300 microamps Physical Characteristics Value Dimensions 1 735 4 41 cm x 17 665 44 87 cm x 17 25 43 8 cm without wings Dimensions of optional wall mount assembly 2 5 6 cm x 20 0 51 cm x 17 4 44 cm Weight 14 1 pounds 6 4 kg Weight with wall mount assembly 24 2 pounds 1...

Страница 96: ... the ACC 3 Let the ACC dry completely before use System Symbols The following is an explanation of the symbols found on the hardware components of the Agilent CareNet Controller Environmental Characteristics Value Operating Temperature 0o to 55o C 32o F to 131o C Storage Temperature 40o C to 75o C 40o F to 167 oF Humidity Up to 95 RH 40o C 104o F Altitude Operating up to 4600 meters 15 000 ft Non ...

Страница 97: ...Germany Fax 49 7031 464 1552 Protective Earth Ground Serial Number The Agilent Serial Distribution Network SDN Agilent CareNet Controller ACC complies with the requirements of the Council Directive 93 42 EEC of 14 June 1993 concerning medical devices and carries CE marking accordingly Canadian Radio Equipment Compliance Canada Only For sale by prescription only Symbol Explanation ...

Страница 98: ...Contacts 10 6 ...

Страница 99: ... 8 9 configuration review 7 8 connecting branch cables to switch wall boxes 8 12 8 15 connecting LDC from wall box to instrument 8 24 E error messages 3 5 NO DATA FROM BED 3 6 NO DATA FROM BEDS IN UNIT 3 6 NO OVERVIEW FUNCTIONS AVAILABLE 3 6 NO RECORDER AVAILABLE 3 6 SDN COMM FAILURE DUPLICATE BED 3 5 SDN COMM FAILURE ILLEGAL BED NUMBER 3 5 SDN EQUIP MALF 3 5 extended system distribution cable 8 1...

Страница 100: ...tions 2 12 system description 1 1 1 8 theory of operation 2 2 2 13 timing overview 2 7 topology 2 5 troubleshooting 3 1 3 16 troubleshooting flowchart 3 4 wiring 8 1 Serial Distribution Network See SDN servicing 1 5 site prep 7 1 7 8 specifications 10 1 10 5 ACC 10 3 SDN 10 1 standalone instrument verification 7 8 standard system distribution cable 8 12 star topology 2 5 sync tap 2 7 2 9 system co...

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