The electrical signaling standards intended for use with RS-449 are DE-9 for the primary and secondary data circuits.
12.
The work stoppage had disrupted long-distance telephone, telex and data circuits nationwide, and some strikers reportedly sabotaged phone lines.
13.
PCPs formed the core of the network and were attached to each other over Ethernet and dedicated synchronous data circuits.
14.
Also down and out were 4.5 million data circuits, including high-speed Internet lines and connections to brokerages, lottery terminals and ATMs.
15.
Some 200, 000 lines and 3 million data circuits, or private lines that normally serve business customers, are housed in the building.
16.
Satellite data circuits will garble each outage day and could stop for several minutes on the middle day in an affected area.
17.
Some 200, 000 lines and 3 million data circuits, or private lines that normally serve business customers, were housed in the building.
18.
Also down and out were 4 . 5 million data circuits, including high-speed Internet lines and connections to brokerages, lottery terminals and ATMs.
19.
The work stoppage had disrupted long-distance telephone, telex and data circuits nationwide, and some phone lines reportedly had been sabotaged by striking workers.
20.
One switching office was destroyed and another that handled about 300, 000 telephone lines and 3.5 million point-to-point data circuits was badly damaged.
