HP (Hewlett-Packard)メーカーE1368Aの使用説明書/サービス説明書
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Conten ts HP E1368 A/69A/70 A Mod ules Use r’s Manu al Wa r rant y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Safety S y mbols .
Exa mple: T rans f er S w i tch Usi n g T wo 3 - Port S w itch es . . . . . . . . . . . . . . . 36 Exa mple: T rans f er S w i tch Usi n g One 5 -P ort S w it ch . . . . . . . . . . . . . . . . 37 Exa mple: 4 x 1 Mul tipl exer . . . . . . . . . . . . .
SYSTem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 :CDEScr ipti o n ? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 :CPON . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Not es 4 HP E1368A/69A/70A M odules Us er’s M anual C on t ents.
Certificati on H ewlett- Pac kard Company c ertif ies tha t this produ ct m et i ts published sp ec ifica tion s a t the time of shipment fr om th e factory.
F rame or chassis ground ter mi nal— t y pi- cally conne cts to the equipment’s metal frame. Al ter n ati ng c u rren t (A C ). Dir ect curr en t (DC). Indi ca te s haza rd ous v oltag e s. Ca lls a t te nt ion to a pr oce dure, pr acti ce, or c on dition that c ould caus e bod ily injury or de a t h .
Declaration o f Conformi ty according to I S O/IEC Guide 22 an d E N 45014 Manu fa cturer’ s Nam e: Hewlett -Pa ck ar d Compa ny Lo v eland Manufacturing Center Ma n uf ac t urer ’s Addre ss: 815 14 t h St re et S.
Not es 8 HP E13 68A, E1 36 9A , E13 70 A Mic rowav e S witch and Driver Modules User’s M anual.
Reader C omment S hee t HP E1368A, E1369A, E1370A Microwa v e S witch and D ri ver Modul e s User’s Manual Edi t ion 3 Y ou ca n help us i mprove our manua l s b y s h a ri n g your comm ents a nd suggesti ons.
10 HP E1368A, E1369A, E1370A Microwave Switch and Driver Mo d ules User’s Ma n ua l.
Ch a pter 1 Getting Sta rted with the HP E1368A/69A /70A Using This Chapter Th is ch apte r des cribe s the Mic ro wave Switch m odul es , and c ont ain s inf ormat ion on h o w t o p r ogram t h e m usin g SCPI (Standa rd C om ma n d s f or Progra m mable I ns tr u m en ts) c o mma nds.
Figu re 1-1. HP M icrow ave Switch Block Diag ram 12 Getting Started with t he HP E1368A/69 A /70A Ch apter 1.
Pow er Supp l y Circ uit Po we r to o p erate the c oaxial sw itch es can be supplied inte rnall y or ex t ernally, de p endent o n the typ e of coaxia l s w it c h used. • I n t e rnal vo lt a ges of either +5V or +12V can be sel e cte d using jumpe rs on th e board .
Instrument Definition HP plug -in module s in s talle d in an HP mai nf rame or used with an HP c ommand mo dul e ar e t r eated as indep endent instr u m e nts each havi ng a unique se condary HP-IB ad dress.
The logi c al a ddr e s s es no t e d in F i gure 1-2 app ly t o modu l e s i nstall e d in an HP 75 000 S eries B M ainfra me (HP Model N umb er E1300/ E1301) or in a main f r a me w ith a n HP E1405/ E1406 C om mand Modu l e .
SCPI Comma nd Format Used i n This M anual You ca n s e nd SC PI c ommands in either s h o rt or l ong f orm. R e f e r t o Chapt e r 4 f or more inf ormati on. A long f orm examp l e is: CLOSe (@102) The s ame c o m mand show n with out the l ower c as e lette rs is th e shor t form.
Ch a pter 2 Confi guring the H P E1368A/ 69A/70 A Modules Using This Chapter This c hapt er s ho w s how t o c onn e ct ex ternal wiring to t he Microwave Sw itch Mo dules c on necto rs , and ho w to co nfig ure the mo dule fo r o p e rati on. • S ett in g t h e A dd res s S w i t ch .
Setting the A ddress Sw it ch The l ogic al ad dres s switch ( LADD R) f a ctory s ettin g i s 120. You may have c hanged th e s e ttin g durin g module in sta llati on.
Selecting the Interr upt Priori ty The Mi crowave Sw itch mo dules gener ate i nterrup t s afte r a chann el has b e en c los ed or op e ned. The s e interrupts ar e s e nt to, and ac kno wledgm ents a r e recei ved f rom, th e slot 0 modul e via th e VXI bus backpl ane i nterrup t lines .
Installing Switches on t he HP E1369A Beca u s e the HP E1369 A M icrowave S w itch m odu les do not have Mic rowa ve Sw itch es in stall ed by th e factory, it is nec ess ary to inst a ll or c onnect s w it ch e s bef o re op e rating.
Af t e r s e le c t in g the coa x ial s w it c h, ins tall a s fo llows: 1. Posi t i on the coaxi al s wi t ch beh ind th e channel 00 pa n e l cut -out. Se c ure to re ar pane l us i ng tw o M 2 .5 x .45 me tri c s c rews (P/N 05 15-137 3). 2. Route t he 3-wi re cable ( P/N E136 8-6160 1) from J1 to th e c oaxial swi tch t ermin als .
Figu re 2-3. M icrow ave Switch Install ation 22 Confi gur ing the HP E1368A/6 9A/70A Modules Ch apte r 2.
C onnec ting Swi tche s Ext ern al to the Module Co n nect ion of up to fi v e coaxial sw itc hes (c hann el s 00-04) is d e scri b e d b elow. Figure 2-4 s hows the wiring d iagra m for ea ch swit ch connect e d. Cau tion The maxim um curre nt that the control circuit can a c commo date is 1 amp per sw itch.
Sele c t ing Switc h Po wer Afte r the coaxi al sw itches hav e be en i nstalled (ref e r to “ I nst a lling Swit c hes on th e H P E1369A” e arlier in th is chap t er), the co rrect oper at i ng voltage mu st b e s ele c t ed. S ee i ns t a l le d s wit ch s p e c if ica t io ns.
C on n ecti ng Fi eld W iring Figure 2-6 shows t he int ernal swit ch diagram f o r t he var i ous HP 3-p or t, 4-po rt, and 5-po rt coaxi al s witch es . All s witch es are sh o w n i n th e "O PEN" p osit io n . To minim iz e loss at hig h frequ e nc ies, us e t he f o llo w ing gu ide lin e s when maki n g c o nne c t io n s.
Installing a Switch or A ttenuator on the HP E1370A Microw av e Sw it ch/Attenuat or Card Beca u s e the HP E1370 A M icrowave S w itch / A tt enuat or m odu le s do not hav e a Microw ave Swi tch of Atte nu a tor insta lled by the fac tory, it is nec e s sary t o inst a l l or c on n ect a s witch or a t t enuat or bef o re op era t ing.
Af t e r s elec t in g the coax ia l s witch or at t enuator, insta ll a s fo l lows : 1. Posi tion t he co axial s wi tch o r atten u ator beh in d th e panel cut-out . Us e t wo M3 .0 x 8 mm ( P /N 0515-0372) metric scre ws to s ecure the rear panel.
C on n ecti ng Fi eld W iring Figure 2-8 shows t he int ernal swit ch diagram f o r t he var i ous HP si n g l e-pol e, multi -th ro w switch es . Al l swi tches are shown in th e " OPEN" p osit io n . To minim iz e loss at hig h frequ e nc ies, us e t he f o llo w ing gu ide lin e s when maki n g c o nne c t io n s.
Ch a pter 3 Usin g the HP E13 68A/69A /70A Modu les Using This Chapter Thi s chap ter use s typi cal e xa mpl es to show h ow to us e t he Mic rowave Sw itch mo dul es. Th is chapte r co n tain s the fo llow ing sectio n s: • Mic rowa ve Sw itch Co mmands .
Reset Conditions When th e Mic rowav e Sw itch is s wi tche d on o r *RST (res et ), a ll c hannels are s et to ope n ( r efer to Figu re 2- 6 ), and the c urren t chan n e l li st f or scann in g is in validat e d. Table 3-2 lists the para met ers and defau lt valu e s f or the fun cti o n s desc ribed in Ch apte r 3.
S w itching Channels For ge ne ra l pur p ose s w itch opera tio n, y ou c an c on nec t or d isco n nec t a s ig nal b y o p eni ng o r c l osin g a sp ec if ic c ha nn e l. • Us e CLOS < channel_ list > to c lo s e coaxial swit ch channel( s), and OPEN < cha nnel_list > to op en c oaxial switc h channel(s).
Exa mple: Sin gle Ch anne l Switc hing using EXTern al POWER This exam p l e illu strat es cl o sin g and op enin g coax ia l s w itc h c h anne l 01 in a HP E1369A Mic rowav e Sw itch Driv er mod ul e . Fo r th e example , th e ty pe of s w itch installed in the HP E1369 A is a HP 33311 B (8762B), with 24 Vdc dr i ve re qui r em en ts.
Ex amp le : Ch an n el Sw i tc hing u s in g th e E1370 A and the 33 366K Mi cro wa v e Switc h This exam p l e illu strat es how t o m a ke conn e ctio n s to diff er ent port s on th e HP E1370A Mic rowav e Sw itch/A t tenuato r Driv er and the H P 3 3366K Sin gle-po l e , Six-th row Mic rowave Sw itch .
Not e: B ecause of the s p eci f ic ribbon cable co nfig uratio ns, t h e c han nel n umb er do es n ot di re ctly co rrespon d to the s ame port n u m ber. T a b le 3-3 m ap s t h e p ort nu m b ers to the c orr espondi n g c hannel nu m b e rs for all of t he HP33 3XXK Micr owave Switch e s.
Examp le: Mu ltiple Ch anne l Switc hing using EXTern al POWER This exam ple illu st r at e s cl o sin g and op e nin g coa x ial s witc h c h anne ls 0 0 th rough 0 4 i n a HP E1369A Mic rowav e Sw itch Driv er mod ul e .
Ex ample : T rans fer Sw i tc h U si ng T w o 3-Port Switche s Th is e xampl e sh ow s ho w to c o nfi gure th e HP E1368A Mic row ave Sw itch to e ithe r ro ute a si gn al d ire ctl y to th e ou t put , o r ro ute it th r ough a n e x te rn al devic e bef or e being outpu t.
Ex ample : T rans fer Sw itc h Us in g On e 5-Port Switch Th is e xampl e sh ow s ho w to c o nfi gure th e HP E1369A Mic row ave Sw itch Drive r wit h a 5-p ort s witch (HP 33313 or 876 4) ins ta ll e d, to either rout e a sig n a l dire ct ly t o t he ou tput, or r ou t e it throug h an exte rnal device before b ein g outpu t.
Exa mpl e: 4 x 1 Mu ltip le xe r Thi s e xampl e sh ow s how to c on fig ure th e H P E1368A Mic row ave Sw itch to s el ect one o f fo ur sign als fo r outpu t. Fo r the ex ample , all three switch es (c hann els 00 throug h 0 2) wi l l be used . Figu re 3-6 s hows h ow to c onnect ch an ne ls 0 0 thr oug h 02 .
Scanning Channels Sc ann i n g the Mic rowa ve Sw itch m odul e c hann el s co n sists of c losi ng a set of c hann el s (c o n nec ti ng th e 2 por t to th e C port) on e channel at a time. Si ngle scan, multiple scans (2 to 32767), or c ontinuous scannin g mod es ar e avai lable.
Examp le: Sc a n nin g Ch ann els Thi s examp l e u s es the mainframe’s "Trig Ou t " port to s ync hron i z e Mic row ave Sw itch c hann el 00 to 0 2 cl osur es to an e x t e rnal m easurement devi c e ( e.g. F requen c y Coun ter, Sp ec tru m Anal y zer) .
Exampl e: Us i n g the Sca n Co mplet e Bit You ca n u s e t he Sca n Comp let e Bit (b it 8) in t he O perat ion S t a tus R eg i st e r of a sw itchbo x to d eterm in e when a scan n in g cycl e co m pl e te s (no oth er bit s in t h e regis ter appl y to th e sw itch box).
Exe cute : 10 OU T PUT 70915;"*CLS " !Cl e ar all s w i t c hbox sta tus struct ure. 20 OUTPUT 70915;"S TAT:OPER: ENAB 256" !E na ble Sc an Co mple t e Bit to se t bi t 7 in S tat us Reg ist er. 30 OUTPUT 70915;"*S RE 128" !E n ab l e bit 7 of St at us Re giste r to assert SRQ.
Recalling and Sav ing States Th is se ctio n co nt ains i nfor matio n abo ut savi ng an d rec alli ng sw itch s tate s. Sto ring State s The *SAV < numeric_s tate > co mm an d save s th e c urr ent i n st ru m e nt st ate . The stat e nu m b e r (0-9) is specified in th e < numeric_state > p ar ame te r.
For t h e exa mp le, use: • an HP- IB s elect cod e of 7, pr imary a ddr ess of 09, an d s e co n dar y addr ess o f 15 for the Mic r owave Switch • an HP S eries 200/ 300 C omp u t er w i t h HP B ASIC Exe cute : 10 !Call computer subprogram “Errmsg” i f a M i c r owa v e 20 !Switch program ming error occurs.
350 OUTPUT 70915;"*CLS" 360 STO P 370 SUBEND Co mment s I f you have an H P 75 000 Serie s B mainfr a m e wit h a fr ont p a n e l k e y b oard, errors can b e monitored by s e lecting “ Monitor” from th e Sw itch m enu . I f errors occur wh e n the pr o gra m executes, t he “ err” an n u nc iator wil l ap p e ar.
Q uery ing the Microw ave Sw itch Th is sectio n sum m ari z e s the q uery c o m mand s y ou c an use to dete rm i n e the c onf igurat i o n or sta t e of the Micr owa ve Swit c h . All c o mma nds e nd wit h the q u e st ion m a r k ( ? ) w hi c h p uts t he da ta in t o the outp ut buffe r w here yo u can re trie ve it to your c omput er.
Ch a pter 4 HP E1 368A/69 A/70A C o mmand Reference Using This Chapter Thi s chap t er des cribes Standar d Comman ds for P rogr am mable In st ru m ents (SCPI) co mmands a nd summariz e s IEEE 488.2 C ommon ( * ) Co m m an ds appl icable to t he Mic rowave Switch .
Command Separat or A colon ( : ) always s eparat e s one co m ma n d from t he next lower le ve l c ommand as shown bel o w: ROUTe: SCAN:MO DE? Col on s se pa ra te th e roo t c om man d from th e se co nd le vel co mman d ( ROUTe: SCAN ) and th e s ec ond le vel from th e th ird le v e l ( SCAN:M ODE? ).
Parameters Par a me ter Ty pes. Th e f ollowing table contains explanat ions and ex a mples of param et er typ es y ou mi ght see lat er in t his c hap t er.
SCPI Command Reference Th is se ctio n de scri b es th e Stand ar d Comm and s for P ro gramm abl e I nst r u m ents (SC PI) co m ma n ds for t he Micr owa ve S wit ch modu l es. Co m man ds are l isted alph abeti call y by subs ys t em and als o w it hi n eac h sub system.
ARM The ARM su bsyst em s elects t he nu mber of scanni n g c y c l e s (1 thr ou g h 327 67) for each INIT iat e co mman d. ARM :CO UNt < number > MI N | MA X :COUNt? [MIN | MAX] :COUNt ARM:COU.
:COUNt? ARM:COUNt ? [MIN | MAX] returns t h e curr ent nu mb er of scannin g cycl e s se t b y ARM:COUNt . T he c urrent number of scans cycl es i s r etu rned when no MI N or MAX pa ra me te r is se n t . Wi th MIN or MAX pa sse d a s pa ra m ete rs , MI N returns 1 an d MAX returns 32767 .
D IS Play The DISP lay subs ystem monit o rs t h e c hannel stat e of a s e le c ted mo d u le ( o r ca rd) i n a sw itch box . Th is subsy stem o nly ope r at e s wi th mai nfram es th at have a displ ay, such as the H P 75 000 Serie s B M a infr a me (HP M ode l Num be r E 130 1A ) .
:MONitor[:STA Te] DISPlay:MO Nitor[ : ST ATe] < mode > tu rns t he mon itor mo de ON or OFF . Parameters Pa ramet er Name Pa ram eter Type Ra nge of Values Default Valu e mode boo lean 0 | 1 | O.
INITiate The INI T i ate subsyst em sel e cts c ont inu ous sca nni n g c ycles an d starts t h e sca nnin g cy cl e . Subsystem Sy nta x INI Tiat e :C ONTinuous < mode > :C ONTinuous ? [:IM Mediat e] :CONTinu o us INI Tiate: CONT inuo us < mod e > enab les or disa b le s continuous sca nni n g cycl es f or t he sw itch box.
: CON Tinuo us? INIT iate:CONT inuo us? queri es th e sc a nni n g st at e. With c o nti nuo us sca nnin g enable d, the c ommand r e tur ns 1 . With continuous sca nnin g di sabled, the co mmand retu r ns 0 .
OUTPut The OUT Put subs yst em enab le s or disa bles the "Trig Ou t" port o f th e HP E130 0/E13 01 Main frame or on t h e HP C ommand M odule.
[R OUTe: ] The ROUT e subsy stem c o n t rols s witch ing and scann ing ope r a ti on s for th e Mic row ave Sw itch mo dul es in a swi tch box . Subsystem Sy nta x [RO UTe:] CLOSe < channel_lis t .
CL OSe? [ROUT e:]CLOSe? < c hannel_ list > re tu rn s th e c u rre nt st ate of the c hannel(s) qu eried. The chann e l _list is in the f orm (@cc n n ). The co mma nd re tu rns 1 i f th e c hann el i s cl o se d o r r e tu rns 0 if th e c hann e l is op e n.
OPEN? [ROUT e:]O PEN? < chan nel_list > ret u rns th e c u rren t st ate of th e c hann el (s ) qu eried. Th e channel_li st is i n the fo rm (@ccnn) . The co mmand re turns 1 i f th e c hann el i s o pen or re tu rns 0 if th e c hann el is cl ose d.
SC A N:MODE [ROU T e:]SCA N:MODE < mode > is accepte d by the Microw ave Sw itch . NON E , V OLT , and RES se t th e mode fo r " n o meas urements" whi le FRES is not support ed a nd will generat e an e rror. Th i s c o mm a nd ha s no e f fect on Mic row ave Sw itch ope ra tion .
STA T us The ST AT us subsys t em re p orts the bit valu es of the Operation Sta tus Re giste r. On ly bi t 8 in th e St anda rd Ope r atio n S ta tus R eg iste r i s use d to noti f y that a scan is co mplete .
:OPERation:ENA Ble S T A Tus: OP ERati on:E N A Ble < number > en able s th e St and ard Ope ra ti o n S tatus Re giste r to se t a bit in t he Status Byt e Register. For t he Microwave Sw itch , w h e n bi t 8 in the St and ard Ope r ation S tatu s Re giste r is se t to 1, bi t 7 in t he S ta tus B y t e R egist e r is s et t o 1.
:OPERation [:EVENt]? S T ATus: OPERati o n [:EVENt ] ? qu er ie s t h e st at us of t he Sta nd ar d O p e r at i on S ta tus E ven t R e gist er. Co mment s • Ou t pu t F orm a t: Retu rns a dec i m al we igh ted value f rom 0 to 256 ind icating which bits are set t ru e .
SYSTem The SYST em subsyste m retu rns er ror nu mb e r s / messa ge s in t h e er ror qu eu e of a switch bo x, and ret urn s the type s and d e scriptions of modu l es (cards ) in a switchbox.
:CT YPe ? SYS Tem: C TY Pe? < numb er > re tu rns th e mod ul e (c ar d) ty p e of a s el ecte d mo dule in a s w it c h b ox. Parameters Pa ramet er Name Pa ram eter Type Ra nge of Values Defau.
TRIGger The TRI Gg er subsys t e m c ontrols t he trig g er ing operat ion of t h e Mi crow ave Sw itch mo dul es in a sw itch box . Subsystem Sy nta x TRIG ger [:IMMedi ate] :SOURce BUS | EXTernal | .
Co mment s • Enabling the T rigger So u rce: Th e T R IGger: S O URce co m ma n d onl y s e le cts t h e trigge r s o urc e . The INI T i ate[: I M Mediat e] co mm a n d enabl es th e t rigge r so u rce .
Sca nn i n g Usin g Bu s Tr iggers This exam p le uses bus t ri ggering ( T RIG :SOUR BUS ) t o sca n c h anne ls 00 th rough 02 of a s ing l e -m odule sw itch box. The t rig ger so u rc e to adv ance the sca n is the *TRG comm an d ( as se t with TRI G ger: SOURce BUS ).
IEEE 488.2 Common Commands The fo llowi ng t a ble lists t he IEEE 488. 2 C om m on ( * ) C om ma nds that can be e xecu t ed by th e Mi crowave Sw itc h mo dules. The ope rati on of s o m e of th ese co m man ds i s de sc r ibe d in C h ap te r 3 of th i s m an ual .
Command Quick Reference The fo l lowi n g tables su mm a r iz e SCPI a n d IEEE 48 8. 2 C o m mo n (*) Co m mands for the Mic r owav e Switch module s.
72 HP E136 8A/69A/7 0A Co m mand Ref ere nce Ch apter 4.
A ppe ndix A HP E 1368A/69A /70A S pecificatio n s HP E 1 368 A Microwave Switch F r eq ue ncy Ra n g e : DC-18 GHz C h ar acteri sti c I m p ede nce : 50 Ω I nser ti o n Loss : DC-2GHz: <0 . 25dB DC-18G Hz : <0. 50dB Iso lation: DC-18GHz: >90dB VSW R (50 Ω loa d) : DC-2GHz: <1 .
74 HP E1368 A/69A/70 A S p e ci f i cations Append ix A.
A ppe ndix B HP E 1368A/69A/ 70A Regi sters Register Definit ions Al l thre e Mi crowav e Sw itc h mo dules a re reg ister- ba sed d e v ice s. See th e t a b les b e low fo r re g i ste r defin itions .
Addressing the Register s To read or w rite to spe cifi c reg iste rs , you mus t use th e re g iste r add r ess . Re giste r ad dre s se s fo r H P 7 5 000 S eries C plu g-in modu les a r e in address spac e V XI A 16 .
St a t us/C ont r o l Re gist er E a ch coaxial switch re qu ires about 30 msec e x ecutio n ti me (close to o pen or op en to clos e ) dur i ng which ti m e the s witch is "busy".
78 HP E136 8A/69A/7 0A Regist ers Ap pendix B.
A ppe ndix C HP E 1368A/6 9A/70A Erro r Messages Ta b l e C-1 lis ts t he e rr or me ssa g es a sso c iat ed wit h th e M i crowave Swi tch mo dule progra mm ed b y SCPI. Se e t he approp riate m a infr a me manua l for a c omp let e l ist of error mess a g es.
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Inde x HP E1368 A/69A/70 A Mo d u l es User’s Manu a l *CLS, 29, 70 *ESE , 29, 70 *E S E ?, 7 0 *E S R?, 70 *IDN, 70 *OPC, 70 *OPC?, 70 *R CL , 4 3 , 70 * RST, 29 - 30, 70 - 71 *SAV, 43, 70 *SR E, 2.
pa ra me t er s, 4 9 quer y, 46 Quick Re ference , 7 1 SCPI, 47 SCPI forma t, 16, 47 separ a t or, 48 ty p e s , 4 7 Comment sheet, rea der, 9 Co mmo n (*) Co m ma nds , 47 *CLS, 2 9, 70 *E SE, 29, 7 .
*E S R?, 70 Even t I n Por t , 68 Ex am ples chan nel s w itchin g wit h E1369A, 35 chan nel s w itchin g wit h E1370A, 33 checki ng for errors, 43 - 44 mu lt ipl e ch a nn el s w it ch in g , 35 mult.
N Non - HP Swit ches, 20 Numer ic C omma nd Pa ramet er s, 49 O *OPC, 70 *OPC?, 70 OPEN, ([ RO UTe:]OPE N), 14, 29, 59, 71 OPEN? , ([ROU Te : ]OPE N ?), 46, 60, 71 Openi ng chan nels, 31 , 59 Oper a t.
S Sa fe ty w a rni ngs, 6, 17 *SAV, 43, 70 Savin g S wi t ch St ates, 43 Scan C omplet e Bi t, 41 SCAN, ( [ RO UTe:] SCAN), 29 , 60, 71 SCAN:MODE, ([ROU Te : ]SCAN: MODE) , 30, 61, 71 SCAN:MODE?, ([RO.
t ran sfe r, 3 6 - 37 Sw i tc hi ng chan nels, 31 , 33, 35 chan nels wit h E1369 A, 35 chan nels wit h E1370 A, 33 m ul tip le cha nne ls , 33 , 35 single ch an nels, 31 - 32 S y nchr onizing i n st r.
デバイスHP (Hewlett-Packard) E1368Aの購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
HP (Hewlett-Packard) E1368Aをまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはHP (Hewlett-Packard) E1368Aの技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。HP (Hewlett-Packard) E1368Aの取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。HP (Hewlett-Packard) E1368Aで得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
HP (Hewlett-Packard) E1368Aを既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はHP (Hewlett-Packard) E1368Aの不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、HP (Hewlett-Packard) E1368Aに関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちHP (Hewlett-Packard) E1368Aデバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
