HP 37717C Calibration Manual page 52

General Information
Specifications
Operating level:
Receiver mode is user selectable.
STS-1 XCON: 530 mV peak nominal.
STS-1 HI: 1.1 V peak nominal,
equalization up to 450 ft.
STS-1 LOW: 1.1 V peak nominal,
equalization from 450 to 900 ft.
Monitor point compensation:
Monitor mode conforms to ITU-T
G.772. Monitor gain 20 to 26 dB.
OVERHEAD and STRESS TEST
SDH MODULE:
Option A1T.
Adds SDH STM-1 electrical transmit
and receive capability, frequency offset
capability, error and alarm generation,
pointer sequence generation and
overhead access.
SDH Transmit and Receive
SDH rate: 155.52 Mb/s
Frequency Offset: up to 999 ppm.
Interface: Meets ITU-T G.703
Connector: BNC, 75
Clock timing: Internal or recovered or
external MTS.
Recovered: From received SDH signal.
EXT MTS: Data or clock format as
ITU-T G.811.
Payload capability:
Payload mappings: 139.264 Mb/s
mapped into VC-4 according to ITU-T
G.709.
34.368 Mb/s mapped into VC-3
according to ITU-T G.709.
2.048 Mb/s (asynchronous) mapped
into VC-12 according to ITU-T G.709.
2.048 Mb/s (Floating byte
synchronous) mapped into VC-12
according to ITU-T G.709.
VC-2 bulk loaded and mapped into TU-
2 and TU-2-Nc (for N = 2-6) according
to ITU-T G.709.
Payload Data:
PRBS: 2
O.151).
Word: User-defined 16 bit word, all
ones, all zeros, 1010, 1000.
Framed and structured payloads are
available in conjunction with the
Structured PDH option UKJ/UKN.
Payload framing: 139.264, 34.368,
and 2.048 Mb/s and TU-2 Unframed.
139.264, 34.368, and 2.048 Mb/s
framed and structured signals are
available in conjunction with the
Structured PDH option UKJ/UKN.
External payload data: 139.264 and
34.368 Mb/s data may be inserted and
dropped via the IN/OUT ports of the
unbalanced. Structured PDH option UKJ/UKN.
2.048 Mb/s data may be inserted and
dropped via the 2 Mb/s drop/insert
ports of the Structured PDH option
UKJ/UKN.
TX Overhead User programmable
bytes:
RSOH: A1,A2, C1, E1, F1, D1 to D3
and access to bytes reserved for
national use plus all unmarked bytes
reserved for future international
standardization.
MSOH: K1, K2, D4 to D12, S1, M1,
Z1, Z2, E2 and access to bytes reserved
for national use plus all unmarked bytes
reserved for future international
standardization.
9 11 15 23
-1, 2 -1, 2 -1, 2 -1 (ITU-T
1-31