VXI SM8000 manual

bus SM8000 S ERIES O PTICAL S WITCH U SER ’ S M ANUAL P/N: 82-0052-000 Released February 13, 2006 VXI Technology, Inc. 2031 Main Street Irvine, CA 92614-6509 (949) 955-1894[...]

VXI Technology, Inc. 2[...]

VXI Technology, Inc. SM8000 Series Preface 3 T ABLE OF C ONTENTS I NTRODUCTION Certifi cation .................................................................................................................. .................................... 6 Warranty .............................................................................................[...]

VXI Technology, Inc. 4 SM8000 Series Preface Control Modes .................................................................................................................. ......................... 35 Uncalibrated Operation - Move-To-Absolute-Step ................................................................................. .. 35 Calibrated O[...]

VXI Technology, Inc. SM8000 Series Preface 5[...]

VXI Technology, Inc. 6 SM8000 Series Preface C ERTIFICATION VXI Technology, Inc. (VTI) certifies that this product met its pub lished specifications at the time of shipment from the factor y. VTI further certifies that its calibration m easurements are traceable to the United Stat es National Institute of Standards and Technology (formerly National[...]

VXI Technology, Inc. SM8000 Series Preface 7 D ECLARATION OF C ONFORMITY Declaration of Conformity According to ISO/IEC Guide 22 and EN 45014 M ANUFACTURER ’ S N AME VXI Technology, Inc. M ANUFACTURER ’ S A DDRESS 2031 Main Street Irvine, Californi a 92614-6509 P RODUCT N AME Optical Switch M ODEL N UMBER ( S ) SM8000 P RODUCT O PTIONS All P RO[...]

VXI Technology, Inc. 8 SM8000 Series Preface[...]

VXI Technology, Inc. SM8000 Series Preface 9 G ENERAL S AFETY I NSTRUCTIONS Review the following safety precau tions to avoid bodily injury a nd/or damage to the product. These precautions must be observed during all pha ses of operation or service of this product. Failure to comply with these pr ecautions, or with specific warni ngs elsewhere in t[...]

VXI Technology, Inc. 10 SM8000 Series Preface W ARNINGS (C ONT .) Avoid Electric Shock To avoid electric shock or fire hazard, do not operate this product with the covers removed. Do not connect or disconnect any cable, probes, test leads, etc. while they are connected to a voltage source. Remove all power and unplug unit be fore performing any ser[...]

VXI Technology, Inc. SM8000 Series Preface 11 S UPPORT R ESOURCES Support resources for this product are available on the Internet and at VXI Technology custom er support centers. VXI Technology World Headquarters VXI Technology, Inc. 2031 Main Street Irvine, CA 92614-6509 Phone: (949) 955-1894 Fax: (949) 955-3041 VXI Technology Cleveland Instrumen[...]

VXI Technology, Inc. 12 SM8000 Series Preface[...]

VXI Technology, Inc. SM8000 Series Introduction 13 S ECTION 1 I NTRODUCTION O VERVIEW The SM8000 series optical switching m odules are mem bers of the VXI Technology SMIP II ™ family . They offer a modular desi gn allowing custom switching configurati ons. Due to t he nature of routing fiber optic cabl es and modules, the SM8000 series cannot be [...]

VXI Technology, Inc. 14 SM8000 Series Introduction SM8000 S ERIES - O PTICAL S WITCH C ONTROLLER The SM8000 high-density opt ical switch control ler modul e is designed to handle m any different combinations of opt ical switching m odules. This incl udes up to 12 single m ode prism switc hes, or 4 multi-switch modules of various c onfigurations, or[...]

VXI Technology, Inc. SM8000 Series Introduction 15 SM8001 / SM8002 - M ULTI -C HANNEL S WITCHES The SM8001 and SM8002 base units house the 1xN and 2xN multi-channel switches. They each hold up to four optical switch m odules. Each switch m odule can be either a 1xN (where N ranges from 1 to 32) or a 2xN (where N ranges from 2 t o 30). The SM8001 is[...]

VXI Technology, Inc. 16 SM8000 Series Introduction 1 1 2 3 4 - - N open 1 x N 2 1 1 2 2 - N N open open 1 Duplex 1 x N 2 1 2 3 N open open 1 open 2 x N Blocking 2 1 2 3 4 - N open open 1 open 2 x N Non-Blocking F IGURE 1-2: SM8001 / 8002 S WITCHES[...]

VXI Technology, Inc. SM8000 Series Introduction 17 SM8001 / SM8002 M ULTI S WITCH S PECIFICATIONS G ENERAL S PECIFICATIONS W AVELENGTH R ANGE 780 – 1650 nm I NSERTION L OSS 2 0.6 dB typical, 1.2 dB maxim um B ACK R EFLECTION Single-Mode Fiber 3 Multi-Mode Fiber 3 -60 dB typical , - 55 dB maxi mum -20 dB typical S WITCHING T IME 4 300 ms + 16 m s [...]

VXI Technology, Inc. 18 SM8000 Series Introduction SM8003 - P RISM S WITCHES The SM8003 is a single-slot Prism switch base unit. SPST, SPDT and Transfer switches can be mixed and m atched within t he same SM8003 base unit . Configurations The following configurations are avai lable for the SM8003: SM8003 - Prism Switches: SPST SPDT Transfer The tot[...]

VXI Technology, Inc. SM8000 Series Introduction 19 SM8003 P RISM S WITCH S PECIFICATIONS G ENERAL S PECIFICATIONS W AVELENGTH R ANGE 780 – 1570 nm I NSERTION L OSS 2 0.6 dB typical, 1.1 dB maxim um B ACK R EFLECTION Single-Mode Multi-Mode - 55 dB maxi mum -20 dB typical C ROSS -T ALK -80 dB maxi mum D URABILITY 10 million cycles minimum R EPEATAB[...]

VXI Technology, Inc. 20 SM8000 Series Introduction SM8101 / SM8102 - O PTICAL A TTENUATORS The SM8101 and SM8102 are single-slot VXIbus modules. The SM8101 is a singl e-channel variable attenuator, and t he SM8102 is a two-channel variable attenuator. SM8101 / SM8102 S PECIFICATIONS A TTENUATOR A TTENUATION R ANGE 2 0 – 10 dB 11 – 30 dB 31 – [...]

VXI Technology, Inc. SM8000 Series Preparation for Use 21 S ECTION 2 P REPARATION FOR U SE I NTRODUCTION When the SMIP II is unpacked from its shipping carton, t he contents should include t he following items: (1) SMIP II VXIbus module (1) SM8000 Series Optical Swi tch User’s Manual (this m anual) All components should be imm ediately inspect ed[...]

VXI Technology, Inc. 22 SM8000 Series Preparation for Use S ETTING THE L OGICAL A DDRESS The logical address of the SMIP II is set by two rotary switches lo cated on the top edg e of the interface card, near the backplan e connectors. Each switch is labeled with positions 0 through F. The switch closer to the front panel of the modul e is the least[...]

VXI Technology, Inc. SM8000 Series Preparation for Use 23 Example 2 LA (decimal) Divide by 16 MSB LSB 200 200 / 16 = 12 w/ 8 remai ning Divide by 16. = 1100 1000 Convert to MSB and LSB. = C 8 Convert to hexadeci ma l. Set the back switch to C and t he front switch t o 8. 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 1 2 3 4 5 6 7 8 9 A B C D E F BACK F RONT F [...]

VXI Technology, Inc. 24 SM8000 Series Preparation for Use O PTICAL C ONNECTIONS The SM8000 series are all shipped with dust cap s over each optical connector. These dust caps should remain in place at all tim es wh ile the instrument is not in use. Cleaning Optical Connectors 1. Clean both connectors to rem ove any dirt or parti cles, which coul d [...]

VXI Technology, Inc. SM8000 Series Operation 25 S ECTION 3 O PERATION G ENERAL D ESCRIPTION SM8001 / SM8002 - Multi-Channel Switches The multi-channel optical switch es are optical-mechanical switches that allow selection o f an individual fiber channel by means of a high-reso luti on stepper motor. The stepper m otor moves the comm on fiber into d[...]

VXI Technology, Inc. 26 SM8000 Series Operation SM8003 - Prism Switches The SPST switch provides channel control from one input fiber to one output fiber using a moving shutter between fixed collimators. The SPDT switch provides channel select ion from one i nput fiber to two out put fibers using a moving prism between fixed collimators. The Transf[...]

VXI Technology, Inc. SM8000 Series Operation 27 SM8101 / SM8102 - Optic al Attenuators The Optical Attenuators are based on precise-resolution stepper m otors, which mechani cally position a beam block. See Figure 3-3 for the basic concepts. The attenuator stepper motor is attached to an off-axis cam. A pair of fiber collimators is positioned on ei[...]

VXI Technology, Inc. 28 SM8000 Series Operation O PERATION SM8001 / SM8002 - Multi-Channel Switches When controlling multi-switch modules, the operation is quite sim ilar to that of any other SMIP II family product, but the data sent is operate d on a little bit differently. The SM8000 m ust be configured to control the multi-switch device on one o[...]

VXI Technology, Inc. SM8000 Series Operation 29 1 x N Switch Configuration 1 1 2 3 N 0 . . . F IGURE 3-4: 1 X N S WITCH C ONFIGURATION T ABLE 3-1: C ONTROL C ODES FOR 1 X N C ONFIGURATION RESET* D4 D3 D2 D1 D0 Active Channel 0 x x x x x 0 reset 1 0 0 0 0 0 1 1 0 0 0 0 1 2 1 0 0 0 1 0 3 1 0 0 0 1 1 4 1 0 0 1 0 0 5 1 0 0 1 0 1 6 1 0 0 1 1 0 7 1 0 0 1[...]

VXI Technology, Inc. 30 SM8000 Series Operation Duplex 1 x N Switch Configuration 2 1-1 1-2 2-1 2-2 N-1 N-2 0 0 1 . . . F IGURE 3-5: D UPLEX 1 X N S WITCH C ONFIGURATION T ABLE 3-2: C ONTROL C ODES FOR D UPLEX 1 X N C ONFIGURATION RESET* D4 D3 D2 D1 D0 Common 1 Active Channel Common 2 Active Channel 0 x x x x x 0 reset 0 reset 1 0 0 0 0 0 1-1 1-2 1[...]

VXI Technology, Inc. SM8000 Series Operation 31 2 x N Blocking Switch Configuration 1 1 2 3 N 0 -1 2 block block block block . . . F IGURE 3-6 2 X N B LOCKING S WITCH C ONFIGURATION T ABLE 3-3: C ONTROL C ODES FOR 2 X N B LOCKING C ONFIGURATION RESET* D4 D3 D2 D1 D0 Common 1 Output Channel Common 2 Output Channel 0 x x x x x 0 reset -1 reset 1 0 0 [...]

VXI Technology, Inc. 32 SM8000 Series Operation 2 x N Non-Blocking Switch Configuration 1 1 2 3 N 0 2 block . . . -1 F IGURE 3-7: 2 X N N ON -B LOCKING S WITCH C ONFIGURATION T ABLE 3-4: C ONTROL C ODES FOR 2 X N N ON -B LOCKING C ONFIGURATION RESET* D4 D3 D2 D1 D0 Common 1 Active Channel Common 2 Active Channel 0 x x x x x 0 reset -1 reset 1 0 0 0[...]

VXI Technology, Inc. SM8000 Series Operation 33 REGISTER WRITE BUSY OUTPUT 300ms 16ms F IGURE 3-8: M ULTI -S WITCH T IMING Calculating Switching Time The time-period for switching a chan nel can be divided in to three constituent perio ds. The first time-peri od ends when the BUSY signal goes high. For calculating switchi ng time, however, only the[...]

VXI Technology, Inc. 34 SM8000 Series Operation SM8003 - Prism Switches When controlling single m ode prism swi tches the operation of the SM8000 i s also simi lar to that of any other SMIP II fam ily product. The swit ches are directly control led by register writ es to the Relay Register. See Writing to the Relay Register in the Programming secti[...]

VXI Technology, Inc. SM8000 Series Operation 35 Starting the Device The device resets upon application of power. The Optical Attenuat ors park at the mini mum-l oss position. Control Modes The Optical Attenuato rs can be operated in two modes: uncalibrated and cali brated. The uncalibrated m ode is called Move-To-Absolute -St ep mode. In this m ode[...]

VXI Technology, Inc. 36 SM8000 Series Operation BUSY Signal The BUSY bit is driven high by the device whenever a Set Attenuation comm and is received, or when a RESET signal is received. The BUSY signal remains high whenever a comm and is executed and the stepper motor is moving. During this t ime, no other com ma nds should be sent to the device, [...]

VXI Technology, Inc. SM8000 Series Programm ing 37 S ECTION 4 P ROGRAMMING R EGISTER A CCESS The SMIP II optical m odules are VXIbus register-based devices. Regist er-based programm ing is a series of reads and writes directly to the switch module registers. Thi s eliminates t he time for comm and parsing thus increasing speed. A DDRESSING The VTI [...]

VXI Technology, Inc. 38 SM8000 Series Programmi ng T ABLE 4-1: SMIP II R EGISTER M AP - A16 OFFSET WRITE FUNCTION READ FUNCTION 3E Trace Advance Board Busy 3C Busy Trigger Control Busy Trigger Control 3A Trace RAM Control Trace RAM Control 38 TTL Trigger Polarity Reserved 36 Open Trigger Select Reserved 34 Trace ADV Trigger Select Reserved 32 Trace[...]

VXI Technology, Inc. SM8000 Series Programm ing 39 SMIP II R EGISTERS - A16 The following describes the registers shown i n the SMIP II Register Map for A16 address space. ID Register – Read Only ADDR Plug-In LA+0x00 D11-D0 Manufacturer's ID VXI Technology, Inc., set to F4B 16 D13-D12 Address Space A16/A24 = 00 2 A16/A32 = 01 2 D15-D14 Devic[...]

VXI Technology, Inc. 40 SM8000 Series Programmi ng Control Register – Write Only ADDR Plug-In LA+0x04 D15 A24/A32 Enable 1 = write a 1 to this bit to enable A24/A32 mem ory access 0 = to disable access D14-D2 Reserved Writes to these bits have no effect. D1 Sysfail Inhibit Write a 1 to this bit to prevent the m odule from asserti ng the SYSFAIL* [...]

VXI Technology, Inc. SM8000 Series Programm ing 41 Interrupt Status Register – Read Only ADDR Plug-In LA+0x1A D15 Scan Function done The latest scan list updat e is complete . D14 Openbus Active Event true The Openbus was activated by one or more program med inputs. See description of the Openbus in the m odule register secti on. D13-D8 Modules 0[...]

VXI Technology, Inc. 42 SM8000 Series Programmi ng NVM Access Register – Read ADDR Plug-In LA+0x20 D15-D1 Unused All Bits are always 1. D0 Reads back the serial data st ream from the selected SMIP II board. Note that only one SM IP II board may be read back at a time. NVM Access Register – Write ADDR Plug-In LA+0x20 D15-D7 Unused Data written t[...]

VXI Technology, Inc. SM8000 Series Programm ing 43 Trace RAM End High Register – Read and Write ADDR Plug-In LA+0x2C D15-D4 Unused Data written to these bits have no affect an d read back as 1s. D3-D0 Sets the four most significant bits of the ending address of t he Trace RAM, allowing the availabl e RAM to be divided into multiple traces. Trace [...]

VXI Technology, Inc. 44 SM8000 Series Programmi ng Open Trigger Select Register – Write Only ADDR Plug-In LA+0x36 D15-D8 Sets the TTLTRIG line or lines, wh ich are configures as outputs, and will toggle when Relay Open condition occurs in the module. D15 corresponds to TTLTRIG7, D14 to TTLTRIG6, … and D8 to TTLTRIG0. Setting a bit to a 1 enab l[...]

VXI Technology, Inc. SM8000 Series Programm ing 45 Trace RAM Control Register – Read and Write ADDR Plug-In LA+0x3A D15-D10 Modules Installed D15 is for module 5 ... D10 is for module 0. Set to 0 if the module is installed or set to a 1 if n ot installed. These bits are set to 0 at power on. By setting a 1, the SMIP II Interface PCB will generate[...]

VXI Technology, Inc. 46 SM8000 Series Programmi ng Trigger Advance Register – Write Only ADDR Plug-In LA+0x3E D15-D0 Unused The act of writing to this locati on causes a Trace Advance event to occur in the module. The specific data written to these bits has no affect. Board Busy Register – Read Only ADDR Plug-In LA+0x3E D15-D7 Unused These bits[...]

VXI Technology, Inc. SM8000 Series Programm ing 47 Module 0 Config. - 256 bytes Module 0 Relays - 256 bytes VXI Configuration Space 2MB of A24 or A32 Address Space reserved for VTI SMIP module (assigned by the controller). 1MB RAM 1M Memory Allocated to Store Module Settings 1MB RAM 1M Memory Allocated for Configuration/ Relay Registers Unused F IG[...]

VXI Technology, Inc. 48 SM8000 Series Programmi ng M ODULE R EGISTERS - SM8000 S ERIES C ONTROLLER - A24 / A32 - E XTENDED M EMORY This module is assigned 1 k (1024) by tes of mem ory as shown in the SM IP II Configuration/Relay Register Map for A24/A32 address space. The upper 512 bytes of mem ory space are unused. The lower 512 bytes of mem ory a[...]

VXI Technology, Inc. SM8000 Series Programm ing 49 Control Register (cont.) D7 BBM (Break- Before-Make) / MBB (Make- Before-Break) Enable Bit 0 = BBM/MB B operation on this pl ug-in module is disabled 1 = BBM/MB B operation on this pl ug-in module is enabled Pon state = 0 If this bit is set, the relays on this m odule will be sequenced to effect pr[...]

VXI Technology, Inc. 50 SM8000 Series Programmi ng Control Register (cont.) D3 Relay Reset Select Bit 0 = The Openbus signal is not select ed to reset this m odule's relays 1 = The Openbus signal is selected to reset this module's rel ays Pon state = 0 Many plug-in m odules ma y be programm ed to be l isteners on the Openbus. D2-D0 Unused[...]

VXI Technology, Inc. SM8000 Series Programm ing 51 Status Register – Read Only ADDR Plug-In LA+0x104 D15-D13 Hardware Re vision Code D12-D8 Unused D7-D4 Opt ical Module Access Fail Bits 0 = Indicates that optical module 3 thru 0, respect ively, have not detected a communications error. This is the norm al quiescent state. 1 = Indicates that the o[...]

VXI Technology, Inc. 52 SM8000 Series Programmi ng Command Register – Write Only ADDR Plug-In LA+0x106 D15-D12 Read Byte Count This nibble holds the number of bytes t hat are to be read back from the optical modul e. The value loaded into this nibble i s dependent on the comm and that is requi red to execute in the lower byte of this register. Se[...]

VXI Technology, Inc. SM8000 Series Programm ing 53 Address Register – Write Only ADDR Plug-In LA+0x108 D15-D7 Unused D6-D0 Addr ess Byte to Optical Module This Address Byte is sent to the optical module being addressed. See the Optical Attenuator Operatio n section of th e manual for the operation of the Address register. To operate the modules c[...]

VXI Technology, Inc. 54 SM8000 Series Programmi ng D EVICE M EMORY M ODULE R ELAY C ONTROL A DDRESS - SM8000 S ERIES O PTICAL S WITCH C ONTROLLER The SM8000 SMIP II plug-in m odule is assigned 1 k (1024) byte s of mem ory as shown in t he SMIP II Configuration/Relay Regist er Map for A24/A32 address space as shown below. The lower 512 bytes of each[...]

VXI Technology, Inc. SM8000 Series Programm ing 55 W RITING TO THE R ELAY R EGISTERS If the SM8000 is used to drive singl e-mode prism switc hes, in either latching or non-latching configurations, setting the switches is accomplished through writing to the Relay Register located at Relay Regi ster Offset H0000. Each bit, of this 16-bit register, re[...]

VXI Technology, Inc. 56 SM8000 Series Programmi ng Relay (Optical Module’s Data (Attenuation Level)) Register 02 thru 08 – Read and Write ADDR Plug-In LA+0x002 – 0x008 The SM8000 can alternatively drive up to 4 optical multi switch or attenuator modules. Module one is addressed by writing a 16-bit word to address LA+0x002; modul e two is cont[...]

VXI Technology, Inc. SM8000 Series Programm ing 57 P ROGRAMMING E XAMPLES T YPICAL O PTICAL M ULTI -S WITCH C ONTROL E XAMP LE The optical multi-switch modules are controlled via a 5-bit parallel port. To select the optical switch, the binary number corresponding to the switch is written to the SM8000 optical switch controller. The multi-switch mod[...]

VXI Technology, Inc. 58 SM8000 Series Programmi ng T YPICAL O PTICAL A TTENUATOR C ONTROL E XAMP LE The optical attenuat or modules are controll ed via an I 2 C bus interface. The bus protocol requires the transmission of the followin g: • a Module Address • a Command Byte • the number of byt es to send • the number of bytes to receive • [...]

VXI Technology, Inc. SM8000 Series Programm ing 59 Note To operate the modules correctly, the SM8000 must be loaded with a valid Address in t he Address Register. The SM8000 is hard coded at the factory wi th the optical modules default address of 73 => 49h, and may be used to generate the address used in the command. This is the address of all [...]

VXI Technology, Inc. 60 SM8000 Series Programmi ng C OMMAND R EGISTER The following register ad dressing is based on the Phillips I 2 C specification. For more detailed information, please refer to Phillips d o cument titled The I 2 C Bus and How To Use It . Bits 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 D R R R D W W W C C C C C C C C D Don’t Care R[...]

VXI Technology, Inc. SM8000 Series Programm ing 61 C OMMAND S ET Table 4-2 lists the comm and set available for the SM 8101 / SM8102 Optical At tenuator. The table lists the commands in alphabetical ord er. Detailed description s, listed in nu meric order, follow the table. T ABLE 4-2: A TTENUATOR C OMMAND S ET Command Command Byte Transmit Data By[...]

VXI Technology, Inc. 62 SM8000 Series Programmi ng 30h Command Name Move to Ab so lute Step Command Format 30h HIGH_BYTE LOW_BYTE Description The Move to Absolute Step co mmand sets the position of the stepper motor. Th e v alid range is 0 - 3200, written in a 2-byte (16-bit) format. Example The following exam ple converts a integer decim al step t[...]

VXI Technology, Inc. SM8000 Series Programm ing 63 32h Command Name Reset Device Command Format 32h Description The Reset Device com mand ret urns the unit to a reset, or park positi on. This comm and functions the same as 96h and A2h. 35h Command Name Power Down Motor Command Format 35h Description The Power Down Motor com mand shuts off current t[...]

VXI Technology, Inc. 64 SM8000 Series Programmi ng 6Ch Command Name Power Down Motor Command Format 6Ch Description This com mand functions t he same as 35h and 43h. 80h Command Name Set Attenuatio n Command Format 80h HIGH_BYTE LOW_BYTE Description The Set Attenuati on comm and sets the attenuat ion value using a 2-byte (16-bi t) format. Example T[...]

VXI Technology, Inc. SM8000 Series Programm ing 65 81h Command Name Query Attenuation Command Format 81h Description The Query Attenuat ion comm and returns the current atte nuation value as a 2-byte (16- bit) value. Example The following exam ple shows how to translate the HIGH_BYTE-LOW_BYTE returned value into a dB attenuation valu e: 1. 0Dh &[...]

VXI Technology, Inc. 66 SM8000 Series Programmi ng 83h Command Name Query Maximum Attenuati on Command Format 83h Description The Query Maxim um At tenuation com mand returns the m axim um attenuat ion setting in a 2-byte (16-bit) form at. Example The following exam ple shows how to translate the HIGH_BYTE-LOW_BYTE returned value into a dB attenuat[...]

VXI Technology, Inc. SM8000 Series Programm ing 67 8Ah Command Name Query Calibration Temperature Command Format 8Ah Description The Query Calibration Temperature com ma nd returns the calibration temperature value in a 1-byte (8-bit) format. The calibration temperature is an in teger value. Example The following example translates the OUT _BYTE re[...]

VXI Technology, Inc. 68 SM8000 Series Programmi ng 8Ch Command Name Query Firmware Revision Command Format 8Ch Description The Query Firm ware Revision com mand returns t he unit firmware revi sion in a 2-byte (16-bit) format. Example The following exam ple shows how to translate the HIGH_BYTE-LOW_BYTE returned value into a two-place d ecimal firmw[...]

VXI Technology, Inc. SM8000 Series Programm ing 69 8Eh Command Name Query Calibratio n Table Entry Command Format 8Eh HIGH_BYTE LOW_BYTE Description The Query Calibration Table Entry command returns the calib ratio n table entry (step position) for a given atte nuation in a 2-byte (16-bi t) format. The returned val ue is the absolute step positi on[...]

VXI Technology, Inc. 70 SM8000 Series Programmi ng 90h Command Name Set Address Command Format 90h HIGH_BYTE Description The Set Address comm and permanently sets the address to a one-byte (8-bit) value between 0 and 127 (the MSB of HIGH_BYTE m ust be zero). To operate the modules correctly, the SM8000 must be loaded with a valid Address in the Add[...]

VXI Technology, Inc. SM8000 Series Programm ing 71 96h Command Name Reset Device Command Format A2h Description This com mand functions t he same as 32h and A2h. A2h Command Name Reset Device Command Format A2h Example This comm and functions t he same as 32h and 96h.[...]

VXI Technology, Inc. 72 SM8000 Series Programmi ng[...]

VXI Technology, Inc. SM8000 Series Index 73 I NDEX A A16 addre ss space.............................................................39 A16 base a ddress .............................................................. 37 A16 offset register ............................................................ 37 A16 offset regist er address ..................[...]

VXI Technology, Inc. 74 SM8000 Series Index T temperatur e range ............................................................. 10 test leads ........................................................................... 10 trigge r ............................................................................... 45 V ventilatio n .......................[...]