Figure 2-9. Standard dc/data access circuits

TM 11-5895-1012-10

Figure 2-9. Standard dc/data access circuits

multiplex equipment is adequate

equipment in use which have been designed to operate

at other levels and impedances. In stations where

rgroup, and Group Patching Con-

multiplex not conforming to DCS standard levels and

impedances exists or is programmed for installation, a

(1) The capability for patching among like and un-

local standard is established. The term standard when

used in this manual refers to that standard which is in

use, either the DCS standard of local standard of levels

and impedances.

of group or supergroup connectors is required.

(3) A stand&-level jackfield is provided. It in-

t which use the standard

cludes appearances of groups, supergroups, and base

but have different levels,

bands of all multiplex equipment operating at the

ncies can be made compat-

standard levels and impedance, group and supergroup

through the use of con-

connectors designed to operate at those levels and im-

certain types of multi-

pedances, and one end of each conditioning string.

use nonstandard fre-

c. Conditioning Chains or Strings. Conditioning

y allocation plans and therefore cannot be

equipment chains or strings are usually made up of the

ed at the group or supergroup level even with

following types of components. Not all components are

Appearances for such equipment may be

required for every string. Only those components

wideband jackfields for monitoring and

necessary to match the levels, impedances, and pilot

testing only.

frequencies of a particular type of nonstandard multi-

(2) DCS standard levels and impedances for

plex to the station standard is included in each string.

group, supergroup, and baseband have been

(1) Impedance matching equipment is required to

established. However, them are still types of multiplex