Ancillary and Deployable Voice Systems Flashcards Preview

5 Level CDC > Ancillary and Deployable Voice Systems > Flashcards

Flashcards in Ancillary and Deployable Voice Systems Deck (25):
1

What are the two basic groups of channel banks?

Channel and common equipment units.

2

What is the transmission rate, in megabits per second (Mbps), of Mode 3 in channel bank
operations?

1.544.

3

What function does the line driver unit (LDU) perform for a channel bank unit?

Clock generation.

4

What type of shelf contains the DC552A channel service unit (CSU)?

Modem.

5

What is another name for a stuffing or S-bit in relationship to a channel service unit (CSU)?

Framing.

6

What component is installed to provide a dataset protection against accidental shorts to –52
volts direct current (VDC) analog lines?

Line T–1 interface (LTI).

7

What Meridian application provides local area network (LAN) connectivity so you can
share equipment, data files, and application software utilizing a modem?

CompuCALL.

8

Where is the optional supervisory lamp panel for the 291 Conference/Alerting System
usually installed?

The master station.

9

Which type of equipment modules within the 291 Conference/Alerting System provide the
necessary amplification, ringing, timing, tone supply, and fusing needed for system operation?

Internal control.

10

The power plant ground supply will not provide

digital signal grounds.

11

Fuse block number 62F14 in a given power distribution center (PDC) identifies the

15th fuse on the panel in mounting position 62.

12

Alarm and control inputs detected by the alarm system hardware are interfaced with the
alarm system software through

scan points.

13

What hardware entity contains the alarm system backup circuits which generate an alarm if
the office alarm unit fails?

A meridian trunk module.

14

The primary reason you measure the voltage across terminal or distribution frame protectors
before removing and replacing them is to

make sure dangerous voltages are not present on the line.

15

In addition to fiber-optic and copper cables, what do we use to interconnect integrated
communications access package access nodes on a deployed base within the same theater area?

Microwave and laser.

16

What is the design architecture of theater deployable communications (TDC) metropolitan
area network (MAN)?

Hub-spoke.

17

What type of connectivity does a voice backbone in the theater deployable communications
(TDC) architecture provide?

1.544 Mbps ISDN PRI.

18

What equipment is included in a customer access node (CAN) to provide the inter-site
connectivity?

Lightweight Multiband Satellite Terminal (LMST).

19

What major equipment in a theater deployable communications (TDC) package provides
mobile units with flexible, lightweight, secure, modular, and integrated deployable
communications?

Lightweight Multiband Satellite Terminal (LMST) and ICAP.

20

What is the long-haul transmission component of Theater Deployable Communications
(TDC)?

Lightweight Multiband Satellite Terminal (LMST).

21

What’s the difference between the basic access module (BAM) and the configurable access
module (CAM)?

BAM has a fixed capability.

22

What Integrated Communications Access Package (ICAP) node module provides the radio
frequency (RF) line-of-sight (LOS) link function for internodal connectivity?

Microwave.

23

Upon arrival in a theater, what frequency band does the Lightweight Multiband Satellite
Terminal (LMST) use for initial communications connectivity to the Defense Satellite
Communications System (DSCS)?

X only.

24

What theater deployable communications (TDC) system provides message handling
services?

Stand-Alone Message Processing System.

25

What must customers do to connect telephones and computer workstations to the theater
deployable communications (TDC) backbone network?

Adhere to various open system standards and interfaces such as Ethernet.