Aeroflex 2854S/2855S Digital Analyzers - AEROFLEX - #5

Text version of the page

For the very latest specifications visit www.aeroflex.com Maximum total attenuation 38 dB TEST PATTERNS Source Single Channel Selected 64 kbit/s channel of framed signal at 2048 kbit/s or 8448 kbit/s (G.744). Selected 64 kbit/s channel of 2048 kbit/s tributary. (8, 34 and 140 Mbit/s input), or 8448 kbit/s (G.744) tributary (34 and 140 Mbit/s input). n x 64 kbit/s Channel Selected n x 64 kbit/s channel of framed signal at 2048 kbit/s or 8448 kbit/s (G.744). Selected n x 64 kbit/s channel of 2048 kbit/s tributary (8, 34 and 140 Mbit/s input). Channel distribution can be contiguous or non-contiguous. 2048 kbit/s Tributary 8448 kbit/s Tributary Selected 2048 kbit/s tributary (8, 34 and 140 Mbit/s input). Selected 8448 kbit/s tributary (34 and 140 Mbit/s input). 34368 kbit/s Tributary Selected 34368 kbit/s tributary (140 Mbit/s input) Unframed Unframed signal PRBS 34 and 140 Mbit/s 215 -1, 218 -1, 220 -1, 223 -1, 225 -1, 228 -1, 231 -1 Repetitive Word Any word which repeats over a 24 bit (34 and 140 Mbit/s only), 16 bit or 8 bit sequence. CHANNEL EXTRACT For framed single channel and demultiplex operation a selected 64 kbit/s channel is extracted from the received signal and output as a data signal or voice frequency signal. The audio output is also available on the internal loudspeaker. Data Output Applies to frame structures at 704, 1544, 2048 and 8448 kbit/s (G.704/G.744). Applies to 2048 kbit/s tributaries within frame structures at 8448 kbit/s (G.742), 34 and 140 Mbit/s (G.751) and 8448 kbit/s (G.744) tributaries within 34 and 140 Mbit/s. Data Output Interface Codirectional to G.703 Contradirectional to G.703 (100% AMI or Bipolar NRZ) X.21, RS-449 (V.36), V.35 (using DCE adaptor cable accessory) NRZ (TTL level) Frame or AIS alarm detected All 1's transmitted Signal loss detected Outputs are off Clock output 64 kHz (TTL) Voice Frequency Output Applies to frame structures at 1544 and 2048 kbit/s. Applies to 2048 kbit/s tributaries within frame structures at 8448 kbit/s (G.742), 34 and 140 Mbit/s (G.751). Range 0.3 to 3.4 kHz Decoding A-Law for 2048 kbit/s ì-Law for 1544 kbit/s Impedance 600 Ù balanced STATUS INDICATORS A combination of LEDs and an alarm page indicate frame structure alarm conditions for the input signal and, for demultiplex operation, the tributaries selected. For Demux mode hierarchical AIS, FRAME and DISTANT alarms are ORed to the LED indicator. UNASSIGNED FRAMING BITS The state of the unassigned bits is displayed DATA TEST INTERFACES X.21 (X.24), RS-449 (V.36), V.35 and RS-232 As 2851 (2855S only) TEST PATTERNS As 2851 ERROR INJECTION As 2851 ALARMS As 2851 SYNC OUTPUTS As 2851 ERRORS OUTPUT As 2851 MEASUREMENTS ERROR TYPES PCM Interfaces Line Code Errors (Bipolar Violations) Pattern Errors Framing Errors CRC Errors Data Interfaces Pattern Errors Line Code Errors Measured on input signal