Apogee 2349 DLTM4, Instructions Manual

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Apogee Labs Inc. products are sold by description only. Apogee Labs Inc. reserves the right to make changes in circuit design, software, hardware and/or
specifications at any time without notice. Although Apogee Labs Inc. believes that the information provided is current and accurate, Apogee Labs Inc. does not
assume any responsibility or liability for the use of any product described. It is the responsibility of the user to determine appropriate use of the product in any
given application.
2
PRN
RECEIVER
PCM
RECEIVER
LOCAL
GENERATOR
LOCAL
GENERATOR
FRAME MARK
ERROR
SYNC
ERROR DETECT &
MEASURE
PCM DATA
RX MEMORY
DDS
PRN GENERATOR
PCM GENERATOR
BIT CLOCK
PCM DATA
TX MEMORY
CONTROL
PROCESSOR
(MPU)
BACKPLANE
"ALISDT"
CONTROL BUS
RX INPUT
INTERFACES
ERROR INSERT,
CODE CONVERT,
RANDOMIZE,
POLARITY SELECT,
OUTPUT
INTERFACES
TX
OUTPUT
Figure 1: Model 2349 DLTM4 Block Diagram
4. SPECIFICATION
TEST MODES
Accumulate (manual reset and re-start)
Time-Based Interval (1 second to 500 hours)
Bit-Based Intervals (10 to 10
12
bits)
MEASUREMENTS
Received Bit Rate
Bit Count
Receiver Re-Syncs (slips)
Bit Error Count
Ones in Error
Bit Error Rate
Bit Slip Probability
Symmetry
Frames in Error
Seconds in Test
Seconds in Error
Link Round-Trip Link Delay
One-Way Link Delay
ENVIRONMENT
Operating temperature: 0° to +50° C
Relative Humidity: 0 to 95%, non-condensing
Requires 3 card slots
TX / RX COMMON FEATURES
Bit Codes
NRZ-L/M/S, BIP-L/M/S, DM-M/S, RNRZ-L
PRN Patterns: Forward and Reverse
2
7
-1, 2
9
-1, 2
11
-1, 2
15
-1, 2
20
-1, 2
23
-1, 2
31
-1
TDM Format
4-32 bit Frame Synchronization
Up to 4096 words/frame
8, 16, 32 bits per word
General and Unique Data
TRANSMITTER
Bit Rate
100 bps to 50 Mbps
User selectable Doppler shift rates
Error Injection
One Error per Command
Constant Rate 10
-2
to 10
-6
error rates
Uniform or random distribution
Blanking
10 to 4096 bits every 64 to 1024 bits
Free running or Synchronized to frames
Force output to all zeros
Force 1 TX bit slip
RECEIVER
Auto Synchronization
PRN or TDM
Signal Polarity Selection
Clock and/or Data Normal or Inverted
INTERFACES
TTL - 50/75 ohm, BNC Connector
RS422 - 120 ohm
BiPolar Output - 100 bps to 35M bps (2V p-p)
POWER CONSUMPTION
4.8 Watts