Network synthesis wiring test question high score solution
1st, in the synthesis wiring directs current the earth resistance not to be bigger than, the anti-radar protective resistor should not be bigger.
2nd, manages the subsystem is by the region which and is composed
3rd, between the floor wiring the most ideal position is, like this is easier to guarantee that all level line cable does not surpass the stipulation the greatest length.
4th, between the floor wiring provides the line cable and the line cable connected place.
5th, known Sb is synthesizes the wiring related and installs in the equipment between in equipment occupies area m2; S is use total area m2 between equipment’s; Then S=.
6th, the skeleton line subsystem is synthesizes in the wiring system the very essential constituent, by and between the tie cable or the fiber optics is composed.
7th, the horizontal subsystem when builds the electric cable generally uses the topology.
8th, the synthesis wiring system design defines three kind of different wiring system rank.They are.
9th, the synthesis wiring system has the sophistication, openness, the compatibility, the efficiency.
10th, “3A” the intelligent building refers to the building has, the characteristic.
11.the synthesis wiring system has the sophistication, openness, the compatibility, the efficiency.
12.the synthesis wiring system design defines three kind of different wiring system rank.They are.
13.known Sb is synthesizes the wiring related and installs in the equipment between in equipment occupies area m2; S is use total area m2 between equipment’s; Then S=
14.in the synthesis wiring directs current the earth resistance not to be bigger than, the anti-radar protective resistor should not be bigger.
1st, in the synthesis wiring system uses in connecting subsystem between the floor wiring and equipment’s is ().
A, work area subsystem B, horizontal subsystem C, skeleton line subsystem D, manages the subsystem
2nd, the weaken and the near-end crosstalk compare ARC, expressed ().
A, causes the crosstalk the sending signal power and the crosstalk ratio, its value is smaller is better
B, causes the crosstalk the sending signal power and the crosstalk ratio, its value is bigger is better
C, the signal strength and the crosstalk produce the noise intensity relative size, its value is smaller is better
D, the signal strength and the crosstalk produce the noise intensity relative size, its value is bigger is better
3rd, the work area information plug should install in is away from the ground () above, the information plug should be away from with the computer equipment ().
In A, 30cm,10m in B, 30cm,5m in C, 50cm,10m in D, 50cm,5m Question supplement:4th, some network project information point altogether 500, each information plug jack number is 4, then in the entire project uses the information plug’s quantity for ().
A, 128 B, 129 C, 130 D, 131
5th, the computer network skeleton line line to the capacity rating principle is ().
A, the electric cable skeleton line matches 2 right stranded wires according to 24 information plugs, each switchboard or exchanges the airplane group to match 4 pair of twisted pair lines
B, the electric cable skeleton line matches 4 right stranded wires according to 24 information plugs, each switchboard or exchanges the airplane group to match 2 pair of twisted pair lines
C, the electric cable skeleton line matches 4 right stranded wires according to 24 information plugs, each switchboard or exchanges the airplane group to match 4 pair of twisted pair lines
D, the electric cable skeleton line matches 2 right stranded wires according to 24 information plugs, each switchboard or exchanges the airplane group to match 2 pair of twisted pair lines
6th, commonly used twisted pair line, coaxial cable’s transmission delay respectively be ()
A, 45ns/m, 56ns/m B, 56ns/m, 45ns/m C, 54ns/m, 65ns/m D, above are not
7th, the known some floor needs to turn on 100 telephone pronunciation spot, then the termination this floor telephone system’s trunk cable’s specification and quantity are ().
A, 1 100 pair of big logarithm non-shielded twisted pair B, 2 100 pair of big logarithm non-shielded twisted pair
C, 1 50 pair of big logarithm non-shielded twisted pair D, 1 300 pair of big logarithm non-shielded twisted pair
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