TSW200E1
Test duration: continuous or timer-limited.
•
M
ODE
THROUGH FRAMED:
In this mode, the TSW200E1 is inserted in the circuit under
test and the same frame structured received signal is sent to the transmitter. The equipment
remains transparent to the circuit.
Signal generation with PCM30, PCM30C, PCM31 or PCM31C frame structure
Generated patterns: 7 (2E3-1), 15 (2E4-1), 31 (2E5-1), 63 (2E6-1), 127(2E7-1), 127
LA, 127 LD, 511 (2E9-1), 1023 (2E10-1), 2047 (2E11-1), 2E15-1, 2E17-1, 2E18-
1, 2E20-1 O153, 2E20-1 O151, QRSS, 2E21-1, 2E22-1, 2E23-1, 2E25-1, 2E28-1,
2E29-1, 2E31-1, 2E32-1, all marks (‘1111’), all spaces (‘0000’), ALT M/S
(alternating ‘1s’ and ‘0s’), Double Alt (‘1100’), 3 in 24, 1 in 16, 1 in 8, 1 in 4, D4
LA, D4 LD, and USER, in the NORMAL and INVERTED modes;
Selection of timeslot to be tested;
Analysis of errors in one or more timeslots like errored bits and blocks, FAS error,
CRC error, E-BIT and code error;
Rate of errored bits / blocks;
Analysis of clock SLIP, AIS, Frame and Multi-Frame sync losses and alarms;
Analysis of degraded minute counting, severely errored seconds, errored seconds,
error-free seconds, available and unavailable seconds, following ITU-T Rec.
G.821;
Real-time clock SLIPS counting following ITU-T Rec. G.822;
G.703 interface impedance: 75 Ω unbal, 120 Ω bal or High impedance (bal and
unbal);
NFAS (Non-Frame Alignment Signal), Sa bits programming and timeslot 16 (ABCD
bits) signalling word programming;
Allows substitution of frame-structured data for a test pattern in one or more
timeslots;
Allows timeslot audio output through loudspeaker;
Insertion of errors (BIT, FAS and CRC);
Test duration: continuous or timer-limited.
•
MUX M
ODE
:
In this mode, the TSW200E1 is used to test multiplexers via the interfaces
V.24/RS232, V.35/V11, V.36/V.11, X.21/V.11 or RS530.
•
DEMUX M
ODE
: Allows performing demultiplexer tests. These tests can be monitored
through one of the V.24/RS232, V.35/V11, V.36/V.11, X.21/V.11 or RS530 interfaces.
•
MONITOR M
ODE
:
Allows monitoring and displaying: FAS, NFAS, MFAS, NMFAS words
and the bits Si, Sa, A and E of the NFAS word, for timeslot 0. Allows monitoring and
displaying the eight-bit code word for any timeslot and of the CAS (Channel Associated
Signalling – ABCD bits) status for all thirty telephone channels.
•
FREQUENCY/LEVEL M
ODE
:
In this mode, the TSW200E1 allows a coded sinusoidal
signal to be inserted in any timeslot. The signal has programmable level and frequency.
Simultaneously, TSW200E1 shows the level (in dBm0) and the frequency of a sinusoidal
signal in a timeslot. It can monitor (in dBm) a tone in any timeslot, decoding the structured
2048 Kbps signal, thus allowing the audio output of a timeslot for internal loudspeaker
monitoring.
Wise Telecommunications Industry
5
Содержание TSW200E1
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