Orderwire

11-5895-1012-10

the TCF. Rerouting of the multiplexed groups is readi-

ly accomplished at this central point by patching.

(2) Voice Frequency Channel Interface. The multi-

plex channel modems are wired to the Equal Level

Patch bays in the VF Technical Control area. The

patching facilities in this area provide access to the cir-

cuits.

(3) DC Circuit Interface. In the TCF DC area,

patching access is provided to DC subscriber loops and

VFCT circuits by the DC patch facilities.

4-5. Orderwire

b. Monitoring and Testing Functions.

(1) Monitor and Test Point Interface. All VF and

Effective control of that

DC jacksets include a monitor jack appearance. These

comes under the responsi

jacks are arranged to permit monitoring and testing

Facility requires format

without interrupting the circuit.

(2) Teat Bay Interface. The test bays contain

transmission measuring equipment and other test

item to facilitate maintenance, fault isolation, analy-

sis, and correction.

c. Status Reporting and Coordination Functions.

Operating personnel at the station are the primary

users of the supervisory Subsystem which provides

orderwire communications. This subsystem provides

communications with other stations as required. Re-

porting requirements are established by the station

SOP.

4-4. Duties

a. General. The principal functions of the Technical

controller are to moni

d patch, as required,

4-6. Orderwire Procedures