User's Manual

Glossary
T-BERD/MTS 5800 Getting Started Manual
137
OC-12 — Optical carrier 12. A
SONET channel of 622.08
Mbps.
OC-48 — Optical Carrier 48.
SONET channel of 2.488 Gbps.
OC-192 — Optical Carrier 192.
SONET channel of 9.953 Gbps.
P
Packet — Bundle of data,
configured for transmission.
Consists of data to be trans-
mitted and control information.
R
RJ 48-45 — Jack used for 10/
100/1000 Mbps Ethernet
testing.
Rx — Receive or receiver or
input.
S
SDH — Synchronous Data
Hierarchy.
SONET — Synchronous optical
network.
STM-1e — An electrical SDH
signal of 155.52 Mbps.
STM-4 — An SDH signal of
622.08 Mbps.
STM-16 — An SDH signal of
2488.32 Mbps.
STM-64 — An SDH signal of
9.953 Gbps.
STS-1 — An electrical SONET
signal of 51.84 Mbps.
Sync — Synchronization.
T
Term — See Terminate
Terminate — An application
where the test set is terminating
the circuit. In these applications,
the test set sends and receives
traffic.
Through — An application
where the test set is used in
series with a network circuit to
monitor the traffic on that circuit.
Tx — Transmit or transmitter or
output.
U
USB — Universal Serial Bus. A
bus designed to handle a broad
range of devices, such as
keyboards, mouses, printers,
modems, and hubs.