Characteristics
Inputs and Outputs of the K4315
Fig. 3 - K4315 interface panel
2 Mbps
In accordance with ITU-T*1 G.703
-
Balanced input:
Input impedance: 120 ohm or ≥ 2 kilohm
Input jack: Balanced, 3 contact
Balanced output:
Output impedance: 120 ohm
Output jack: Balanced, 3 contact
Coaxial input:
Input impedance: 75 ohm or ≥ 2 kilohm
Input jack: coax., 1.6/5.6
Coaxial output:
Output
impedance: 75 ohm
Output jack: coax., 1.6/5.6
TTL, NRZ -
Data input:
Input impedance: 75 ohm
Input jack: coax., 1.6/5.6
Data output:
Output
impedance: 75 ohm
Output jack: coax., 1.6/5.6
Clock
input:
Input impedance: 75 ohm
Input jack: coax., 1.6/5.6
Clock output:
Output impedance: 75 ohm
Output jack:
coax., 1.6/5.6
N × 64 Kbps
1.2 to
1544 Kbps -
Input/output: V.11, V.35
V.11 jack: 15 contact,
D-SUB
V.35 jack: 34 contact, ISO 2593
64 Kbps
ITU-T*1 G.703, codirectional -
Input:
Input impedance: 120 ohm
Input jack: Balanced, 3 contact
Output:
Output impedance: 120 ohm
Output jack:
Balanced, 3 contact
Analog
Input:
Input impedance: 600 ohm
Input jack: Balanced, 3 contact
Output:
Output impedance: 600 ohm
Output jack:
Balanced, 3 contact
Remote Control, Printer
V.24 interface
Jack - 24 contact
Supervision of HDB3-Coded
2-Mbps Signals, Monitoring
Supervision in accordance with
ITU-T*1 Rec. O.162 and G.732.
Alarm indications
in the display: No Signal, AIS, No Sync, No Msync, Remote Alarm Signal
RAI, MRAI, No CRC4 sync.
LED alarms: NO SIG, AIS, NO SYNC,
alarm (general alarm).
Latch and reset functions for alarms.
Bit error counting from the FAS.
Counting of code violations.
CRC4 error counting (local/remote).
Error rate for FAS
bit errors, code violations, and CRC4 errors.
Bit error measurements
in bit patterns of N × 64 Kbps channels.
Measurements on frame,
multiframe, and CRC4 frame formats (G.704).
Bit error evaluation
in accordance with ITU-T*1 Rec. G.821, G.826, and M2100.
Display of bit errors and alarms on a histogram and printout
after completion of the measurement.
Supervision of a selected
speech channel with built-in loudspeaker and analog interface.
Talking/listening during measurement.
Measurement of the
level in one of the 30 (31) speech channels, presentation in dBm0
and as maximum code word (±code).
Frequency measurement in
the speech channel up to 3800 Hz.
Channel-associated signaling
(CAS), state of the signaling bits (4 bits per channel) in time slot
16.
Idle/busy scan for all 30 channels using CAS bits.
The state of all 30 channels of a PCM frame are displayed simultaneously.
Display of the last 16 consecutive signaling words per selected
channel.
Supervision of the multiframe alignment signal.
Supervision of the frame alignment signal.
Supervision
of the frame code word.
Printer connection for logging of test
results and acquisition of errors; error list with indication of error
type and time of occurrence, long-term supervision with printout of
collected data; automatic printout of selectable events (limit values
of error ratios, bursts, etc.) and/or time intervals; alarms are printed
out in all cases.
Remote control through the V.24 interface.
Surveillance software for PC-controlled K4305 test sets, PC connected
direct or through a modem.
Storage of up to 1000 test results
for offline evaluation, which gives approx. 2 weeks of storage capacity
under normal conditions.
Measurements with Unframed Signals
Bit pattern in accordance with ITU-T*1 O.151
(223-1, 215-1 and 211-1) and inverted,
"all ones", "all zeros", programmable 8/16-bit word.
Error
insertion: 10-3, 10-4, 10-5, 10-6 and manual.
"All-zeros" signal per key.
"All-ones"
signal (AIS) per key.
Bit rates: 2048-Kbps, HDB3-coded interface
in accordance with ITU-T*1 G.703.
N × 64 Kbps and
1.2; 2.4; 4.8; 8; 9.6; 16; 19.2; 32; 48; 56; 64; 72; 128; 144; 192;
1544-Kbps interface in accordance with RS-422 (V.11). 64-Kbps, codirectional
interface in accordance with ITU-T*1 G.703.
Evaluation
in accordance with ITU-T*1 G.821 and M2100.
Alarms:
No signal (not for RS-422).
AIS (not for RS-422).
No synchronization.
No octet/8-kHz clock (only for 64-Kbps
codirectional).
Delay measurement as bit pattern delay.
Indication in ms or µs.
Resolution: 2 bits (1 µs at 2 Mbps).
Error limits: 1 bit.
Measurements with Framed Signals
(Drop/Insert, Framed Generator)
Bit pattern in accordance
with ITU-T*1 O.151 (223-1, 215-1
and 211-1) and inverted, "all ones", "all zeros", programmable
8/16-bit word.
Insertion and measurement of a freely-selectable
bit pattern in a time slot or in N × 64-Kbps time slots. N is freely
selectable (e.g. 1, 3, 5, 6, 20).
Error insertion 10-3, 10-4, 10-5, 10-6 and manual.
"All-ones" signal (AIS) per key.
"All-zeros" signal per
key.
Bit rate: 2048-Kbps, HDB3-coded in accordance with ITU-T*1 G.703.
Evaluation in accordance with ITU-T*1 G.821 and M2100.
Frame supervision in accordance with monitoring
mode.
Alarms:
No synchronization of the PRBS signal.
All alarms according to monitor mode.
Extended transmit
characteristics: (In this mode, alarms are indicated at the receive-side.)
Error insertion in FAS. Single error.
Error ratio 10-4, 10-3, 10-2, 10-1, all.
Code error insertion in PRBS pattern. Single error.
Error
ratio 10-x, x: 3, 4, 5, 6, and 7.
Programmable CAS
signaling word.
A programmable CAS bit pattern for one channel
and another CAS word for the remaining channels.
Programmable
frame alignment signal NFAS.
Remote alarm indication (RAI)-bit
(A bit ITU-T*1 G.704).
Sa4- to Sa8-bits for 8 consecutive
frames with NFAS (8-bit sequences).
Progammable NMFAS.
Bits 5 to 8 of TS16 in frame 0.
Digitized sinusoidal signal
in a selectable channel.
Settable frequencies: 200 Hz to 3400 Hz
in 5-Hz steps.
Settable levels:
-50 to -40 dBm0 in 5-dB
steps.
-39 to +3 dBm0 in 1-dB steps.
Insertion of programmable
8-bit word or a frequency into any channel and another programmable
8-bit word into the remaining channels.
Insertion of a PRBS
into N × 64-Kbps channels and another programmable 8-bit word into
the remaining channels.
Delay measurements as frame-block delay.
Indication in ms.
Resolution: 1 frame block (125 µs).
Error limits: 1 frame block.
Multiplexer and Demultiplexer
MUX/DEMUX -
Transmitter:
PRBS signal
at the 64-Kbps codirectional interface or PRBS signal at the RS-422
interface (N × 64 Kbps).
Receiver:
The PRBS signal is
extracted from the 2048-Kbps signal (64 Kbps or N × 64 Kbps).
Evaluation as in the bit error measurement mode with frame.
DEMUX/MUX -
Transmitter:
A 2048-Kbps signal
is generated with the PRBS signal in a 64-Kbps time slot or in N ×
64-Kbps time slots.
Receiver:
64-Kbps codirectional
from interface according to G.703.
N × 64 Kbps from interface
according to RS-422.
Evaluation as in the bit error measurement
mode without frame.
Drop/Insert Functions
Through-connection of the DC voltage supply possible or separate
input/output.
Supervision functions and alarm indications remain
activated.
Drop from the 2048-Kbps signal.
64-Kbps codirectional
(G.703).
N × 64 Kbps (RS-422).
Analog (decoded according
to the A-law).
Insert in the 2048-Kbps signal.
64 Kbps
(in one selectable time slot).
N × 64 Kbps (in n-selectable
time slots).
Analog (A-law, in one selectable time slot).
Sa-bit sequences.
Internally Sa-bit sequences can be inserted
or extracted repeatedly in or from 8 consecutive frames with NFAS
in the Through mode.
Drop/Repeat Functions
Regeneration of the framed signal with jitter reduction.
Feed-through
of the DC voltage supply possible or separate input/output.
Supervision functions and alarm indications remain activated.
Data Formats
Frame and multiframe in accordance
with ITU-T*1 Rec. G.704.
PCM30, PCM30 CRC, PCM31,
PCM31 CRC.
CRC4 in accordance with ITU-T*1 Rec.
G.704.
Delayed Start of Measurement (Settling Time)
The measurement (timing and display of results) is delayed
with this setting after the transmitter is activated. The advantage
of this is that the item under test has settled in a stable state
at the start of measurement and the measurement results have stabilized.
Settable delay: 1 to 10 s in 1-s steps.
General Data
Inputs and Outputs
Signal inputs -
Nominal bit rate: 2048 Kbps
Line code: HDB3
Receiver
sensitivity: 43 dB attenuation at protected monitoring points or square
root of f-cable equalization up to 38-dB attenuation at 1 MHz
Return loss:
Receiver: ≥20 dB
Transmitter: ≥10 dB
Permissible jitter: In accordance with ITU-T*1 G.823
Coaxial input: 75 ohms or high-impedance ≥ 1.4 kilohm
Input jack: 1.6/5.6
Balanced input: 120 ohms or high-impedance
≥ 2 kilohm
Input jack: Balanced, 3 contact
Signal outputs -
Nominal bit rate: 2048 Kbps
Line
code: HDB3
Switchable 2-Mbps transmit level: N-framed and unframed
Operating mode: -10 dB, -6 dB, 0 dB
Coaxial output: 75
ohms
Output jack: 1.6/5.6
Balanced output: 120 ohms
Output jack: Balanced, 3 contact
64-Kbps-, N
× 64-Kbps-, and analog-interfaces -
Sub-D connector, 26 contact
Connection with adapter cable or expansion box
64-Kbps
input/output: codirectional 120 ohms, balanced according to G.703
Input sensitivity: 50 mV to 3 V, code according to G.703, Fig.
4
Output: 1 V ±0.1 V (terminated with 120 ohms).
N ×
64 Kbps input/output, 1.2 Kbps to 1544 Kbps
Data: RS-422 (V.11)
Clock: RS-422 (V.11)
Analog input, output: 0 dBm = 0 dBm0,
600 ohms, balanced
DC voltage - max. 10 V DC
Frequency
response: Relative to a digitally generated 1020 Hz signal (0 dB)
Input:
In the range 300 Hz to 3 kHz: 0.2 dB
In
the range 200 Hz to 3.4 kHz: 2 dB
Output:
In the range
300 Hz to 3.3 kHz: 0.3 dB
In the range 200 Hz to 3.4 kHz: 1 dB
Coding: A-law
Printer Connection Remote Control
V.24 interface, nine-contact D-connector
Display
128 × 128 dots, graphic supertwist display, temperature-compensated
contrast adjustment and indirect illumination
Keyboard
Membrane keyboard with click-section keys
Power
Supply
Battery operation -
Rechargeable NiCd
batteries
Operating time, continuous: approx. 5 hours in monitoring
mode (capacity reduced when using indirect illumination)
Floating
operation: Continuous operation with external AC line adapter (230 V)
Environmental Conditions
Ambient temperature
-
Reference value: 23 °C ±1 °C
Rated range of use:
5 to 40 °C, for short-time operation 0 to 50 °C
Limit range
for storage and transport: -20 to +50 °C
Relative
humidity -
Reference range at 23 °C: 45 to 75%
Rated
range of use: 20 to 80% (without condensation) absol. humidity <
25 g/m3, for short-time operation 10 to 90%
Limit range of
operation: 10 to 90%
Dimensions (W × H × D)
100 mm × 40 mm × 180 mm
Weight
|
Item
|
kg
|
|
Digital Analyzer K4315
|
|
without printer
|
6
|
|
with printer
|
7.5
|
|
Digital Analyzer K4305
|
1.2
|
|
Accessories:
|
|
Clip-on rechargeable battery pack
|
0.4
|
|
Coaxial connecting cable
|
0.1
|
|
Shielded connecting cable
|
|
with 2 three-contact plugs
|
0.2
|
|
with 1 three-contact plug and 3 single plugs
|
0.2
|
|
Adapter cable
|
|
N × 64 Kbps
|
0.2
|
|
Analog + N × 64 Kbps (G703)
|
0.2
|
|
Printer
|
1.5
|
|
Connecting cable (printer cable)
|
|
V.24/RS-232-C interface, 2 m long
|
0.3
|
|
for printer DPU414
|
0.3
|
*1 Formerly CCITT
