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SECTION 1: DESCRIPTION

AND

SPECIFICATIONS

1.1

DESCRIPTION

GENERAL

The SAP1626 Source Assignment Panel

a manually operated matrix switch. This switch

assigns

each of

TW*

User Station strings to two of fifteen

possible buses. Twelve buses

can

distribute both DC

power and intercom signals. Three buses distribute

intercom signals or program signals. The matrix

switch has the effect of transforming a basic two bus

intercom system to a fifeen bus system. The switch

also assigns six camera intercom stations to a pair of

intercom

program buses or twelve camera stations

to a single intercom

program bus.

SAP1626 BUSES

There are three

kinds

of buses in

the SAP1626:

two-way two-wire

type

intercom

buses,

DC powered two-way two-wire intercom

buses, and

program audio buses. There are twelve

primary intercom buses and three program or sec-

ondary intercom buses.

All

buses allow for two-way

two-wire intercom operation. The twelve primary

buses may

also be "powered" buses. The powering

accomplished by plugging

type

power supplies

into the SAP1626. The powering allows a

inter-

com station to receive power on its channel one wire

(one of three wires connecting the

user station to

the SAP1626). Most

user stations require DC

power to appear across two of the three wires con-

necting it to a system. (The

stations that don't

require this DC power either have a

"Local

Power"

option or they are a special kind of

station.) The

two wires that accept DC power on a

station are

the common and [CHannel One] connections. This

means that,

general, the upper row of switches on

the SAP1626 should

set only to powered buses.

Up to ten user stations may be

a group of

user

stations connected to a SAP1626 output. The twenty

outputs discussed above are available on the back of

the SAP1626 on two

frfty-conductor connectors, or on

the optional

BOP220

twenty three-conductor male

XLR

type connectors.

PROGRAM BUSES

Three program buses allow three

different program sources to

connected to a

SAP1626.

user stations

can

assigned these pro-

grams on their channel two connection (bottom row

of switches on the

SAP1626).If

user stations are

assigned one of the

program

buses with program not

connected, the bus functions

an intercom bus.

CONNECTING SAP1626 BUSES

MODEL 802

CIlANNJ3L.S

The twelve primary buses of the

SAP1626 correspond to the twelve balanced channels

of the Model

802

intercom systems and

can

be inter-

connected using a Model

862

System Interconnect.

CAMERA OUTPUTS

OPTIONAL OUTPUTS

addition to the twenty outputs discussed above, there

are six additional outputs. These outputs are in-

tended primarily for cameras, but

can

used for ad-

ditional

intercom stations or groups of stations.

These six outputs are available on

twenty-five pin

"DM

type

connector on the back of the SAP1626.

Camera output pairs

thru 6 are designated for tele-

vision camera intercom. Output connections

can

made directly to each camera or to the Model

VIE306

Station-Isolate System. In the latter, the outputs are

switched and/or processed accordingly and then

routed to the individual cameras.

PACKAGING: SAP1626

The SAP1626 fits into a

standard two unit

high

EIA

equipment rack. The

front panel contains the thumbwheels used to accom-

plish the matrix switching.

PACKAGING: BOP220

The three rack unit high

BOP220 generally mounts on the rear rails of a rack

panel. BOP220 connectors are mounted on a recessed

panel allowing space for mating connectors and cables

yet not interfering with rack door closing. The

BOP220 connects to the two 50-conductor cables

from the SAP1626 and provides twenty male

XLR-

type

3-pin connectors for direct connection to user

stations.

All

external user station lines connect to this

central point.

here refers to the two-wire unbalanced type

intercom system sold by RTS Systems, Inc.

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