Anritsu MP1763C 4-7, 4.2.4 ZERO SUBSTITUTION

4-74.2.4 ZERO SUBSTITUTION

Select Z.S. with the keys.

Set the 2N PATTERN with the keys. (This PRBS

is a pseudo PATTERN with a period of 2N.)

Set the ZERO SUBSTITUTION BIT LENGTH.

The pattern of bit length logic ø set here is substituted.

See below for the substitution method.

Setting: 1 to 2N-1 (N=7, 9, 11 or 15)

A pattern in which one logical bit is added immediately before the longest string of consecutive 1s of a 7, 9, 11, or 15-step

in a pseudo-PRBS (2N bits: N=7, 9, 11 or 15) is substituted by an all-0s pattern. If the substituted bit is 0, this 0 is changed

to 1.

Example) In the case of a 7-step in a pseudo-PRBS

Since the longest string of continuous 0s is 7 - 1 = 6, the zero substitution starts at the next position.

1 0 0 0 0 0 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 1 0 .....

1 bit 1 0 0 0 0 0 0 0 1 0

5 bits 1 0 0 0 0 0 0 0 0 0 0 0 1 1

7 bits 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0

4.2 Generation Pattern Setting

Since the bit immediately after zero substitution is 0, it is changed to 1.

7-step in a pseudo-PRBS

DISPLAY

DATA LENGTH/ZERO SUBST LENGTH

DATA LENGTH

ZERO SUBST LENGTH

A / B LOOP TIME

PAGE/ PATTERN SYNC POSITION

Contents

Main ii Safety Symbols Symbols used in manual Safety Symbols Used on Equipment and in Manual DANGER WARNING CAUTION iii iv v vi vii Equipment Certificate Anritsu Warranty Anritsu Corporation Contact viii Notes On Export Management Lifetime of Parts FOR CALIFORNIA USA ONLY Page x CE Conformity Marking CE marking 1. Product Model 2. Applied Directive 3. Applied Standards C-tick Conformity Marking xii Power Line Fuse Protection I Composition of MP1763C Operation Manuals II Title of Contents SECTION 3 DESCRIPTION OF PANELS AND CONNECTORS ............................. 3-1 SECTION 4 OPERATING INSTRUCTIONS ............................................................... 4-1 Page Page Page 1-2 1.2 Specifications 1-3 whichever is larger 1-4 1-5 1-6 Section 1 GENERAL 1-7 * When OPTION 03 is installed, there is no 1/8 output. 1-8 1.3 Composition 2-1 SECTION 2 PREPARATIONS 2.1 Environmental Conditions of Installation Site 2.2 Safety Measures 2-2 2.3 Power Connection 2.3.1 Power Requirements 2.3.2 Connecting the Power Cord 2-3 2.4 Damage Prevention Measures Page Page Section 3 DESCRIPTION OF PANELS AND CONNECTORS PULSE PATTERN GENERATOR MP1763C 0.05 - 12.5GHz INTERNAL CLOCK (OPTION.01) PATTERN MEMORY 3.1 FRONT PANEL 3-2 3-3 3-4 3.2 REAR PANEL Section 3 DESCRIPTION OF PANELS AND CONNECTORS !! Nameplate 3-5 Page Page 4-2 4-3 4.2 Generation Pattern Setting 4-4 4.2.1 Logic modification 4.2.2 Alternate pattern setting 4-5 4-6 4.2.3 DATA pattern setting 4-7 4.2.4 ZERO SUBSTITUTION 4-8 4.2.5 Pseudo random pattern setting 4-9 4.2.6 ERROR addition 4-10 4.2.7 Tracking 4-11 4.2.8 Pattern SYNC. position 4-12 4-13 4.3 Output Interface 4-14 4.3.1 DUMMY terminal voltage switching 4-15 4.3.2 Amplitude, offset, and delay setting 4-16 The output waveform is as follows for any of the above three settings: OFFSEET 2 V If VOH is changed to VTH: OFFSEET 1.5 V 4-17 4.3.3 Duty adjustment 4.3.4 Cross point adjustment 4-18 4.3.5 Offset voltage setting range Page Page Page Page 4-23 4.4.1 File save 4-24 4.4.2 File recall 4.4.3 Disk formatting 4-25 4.4.4 File deletion 4.4.5 Error messages 4-26 4.4.6 Floppy disk 4.4.7 Floppy disk precautions 4-27 4.5 Parameters initialization 4-28 4.6 Functions of the FUNCTION Switch 5-1 SECTION 5 PRINCIPLES OF OPERATION 5.1 Pseudorandom Pattern (PRBS Pattern) 5-2 1 2 3 4 5 6 5-3 5.2 Pattern Synchronized Output Period 5.2.1 Pseudorandom pattern 5.2.2 Programmable pattern 5-4 5.3 Bit shift for Alternate A/B select timing 6-1 SECTION 6 PERFORMANCE TEST MEMORY MEMORY 6.1 Test Equipment 6.2 Error Measurement 6-2 Section 6 PERFORMANCE TEST MEMORY 6.3 Test Method Output DATA amplitude 0.5 Vp-p offset 0 Vp-p CLOCK amplitude 0.5 Vp-p offset 0.0 V Delay 0 ps 6-3 6.5 Check Items Check the 1/8 SPEED output with the connection shown at the below. !! Check all the outputs with the connections DATA1 DATA2 - - - DATA8. Fig. 6.3-2 Connection of rear panel Page 7-1 SECTION 7 MAINTENANCE 7.1 Daily Maintenance 7.2 Storage Precautions 7.3 Transportation Page 8-1 SECTION 8 TROUBLESHOOTING AND REPAIR 8.1 Before Considering Trouble Page A-1 APPENDIX A PERFORMANCE TEST REPORT SHEET Page INDEX-1 INDEX