B&B Electronics 3PXCC2a Especificaciones descargar pdf (Pagina 25)

INTERCONNECTING THE EQUIPMENT AE/LZB 119 1894 R1A

activate the console's conventional channel monitor

function.

All footswitch cables terminate with male DB-9

connectors. Mate the appropriate male DB-9 footswitch

connector to the respective female DB-9 connector at

the Enhanced Audio Enclosure's rear panel. Tables 19

and 20 indicate "OPER FT. SW." and "SUPER FT.

SW." connector pin-outs.

Speakers (if used)

Desktop and rack-mount Speaker Assemblies used with

the Enhanced Audio Enclosure each basically consist of

mechanical hardware, one or more speakers, audio

amplification circuitry, and a volume control potentiometer.

The mechanical hardware may be of several different

varieties providing either desktop speaker operation in the

form of a self-contained single-speaker case or a rack-mount

version in the form of a standard 19-inch EIA rack mount

assembly. The 2-speaker rack-mount versions are generally

assembled with one amplified speaker in the far left-hand

position (select speaker), one amplified speaker in the far

right-hand position (unselect speaker) and blank panels

installed in the two center positions. Four-speaker consoles

are generally equipped with two separate 2-speaker rack

mount assemblies.

Install or mount each Speaker Assembly in a suitable

location and then interconnect it to the Enhanced Audio

Enclosure using cable P29/5010150000

(350A1371P29). This cable is 9 feet (2.74 meters) in

length. It is identical to the cable that interconnects the

PC's serial COM port to the Enhanced Audio Enclosure.

Mate the cable's female DB-9 connector to the

appropriate male DB-9 connector on the Enhanced

Audio Enclosure's rear panel. These male connectors

are labeled "SEL SPKR" (select speaker), "UNSEL

SPKR1" (first unselect speaker), "UNSEL SPKR2"

(second unselect speaker) and "UNSEL SPKR3" (third

unselect speaker). Connect the other end of the cable to

the female DB-9 connector at the respective Speaker

Assembly. If necessary, see Tables 17 and 18 for DB-9

pin-outs.

NOTE

Load resistors are not required for unused

Enhanced Audio Enclosure speaker outputs.

Recorder Outputs (if used)

To provide call-check recorder support, select and

unselect audio outputs are available from the Enhanced

Audio Enclosure. These unbalanced 600-ohm outputs

appear at the removable screw-terminal type terminal block

labeled "RECORDER" on the Enhanced Audio Enclosure's

rear panel.

Interconnect the outputs to call-check recorders as

required. These outputs are not isolated from ground

through isolation transformers and the two ground

terminals are common. See Figure 8 and Table 26 for

terminal identification. See the specifications in manual

AE/LZB 119 1892 for audio signal output level

specifications. If required, audio output levels may be

adjusted via menu selection within the console’s

Dispatch Manager program.

RECORDER

WIRE SECURING SCREWS

LOCATED ON TOP

WIRE ATTACHMENT:

1. UNPLUG TERMINAL BLOCK FROM

MATING CONNECTOR.

2. IF REQUIRED, COMPLETELY

LOOSEN WIRE SECURING SCREW.

3. INSERT WIRE.

4. TIGHTEN WIRE SECURING SCREW.

5. REPEAT FOR OTHER WIRES.

6. RECONNECT TERMINAL BLOCK TO

"RECORDER" MATING CONNECTOR.

GROUND

UNSELECT/

TELEPHONE OUT

SELECT OUT

GROUND

Figure 8 – Recorder Outputs At

Enhanced Audio Enclosure

External Paging Encoder Input (if used)

Connections for an external paging tone encoder are

located on a second removable screw-terminal terminal

block on Enhanced Audio Enclosure's rear panel. A

600-ohm balanced line audio input and a PTT (page enable)

input are included. As shown in Figure 9, this terminal block

is labeled "PAGING".

Pager balanced audio on terminals 1 and 2 is switched

in when the PTT line at terminal 3 becomes active by

grounding it to terminal 4. Typically, the PTT action is

accomplished by a relay in the pager. During a page, no

other audio signals are applied to the Line 1 output. Also,

the paging signal is sent to the headsets and speakers

approximately 16 dB lower than other audio signal levels.

Connect the pager to the terminal block in accordance

with the manufacturer's instructions, Figure 9 and Table

25. The audio terminals are isolated from ground. See

the specifications page for audio signal input level

specifications. If required, audio input level adjustment

can be accomplished by changing the respective digital

pot’s setting using the Dispatch Manager’s Digital Pot

Adjustment dialog box; see the procedure on page 7 of

this manual for additional details.

NOTE

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