RTS TR-240 Especificaciones descargar pdf (Pagina 50)

BTR-240s Linked via 2-Wire

Linking base stations via 2-wire has several advantages. Since the

2-wire link is analog, there will be no extra overhead associated

with multicast data transfer as in the Ethernet link. This means

that as long as the base stations are on clear and non-overlapping

RF channels, the base stations can operate completely

independent and therefore much larger capacities can be

achieved.

The drawback is latency. When base stations are linked via

2-wire, and beltpacks from one base station communicate to

beltpacks of another base station, the latency will be double.

However, the echo cancellation algorithm is also operating on the

2-wire interface so this will help in eliminating the resulting

latency effects. The second drawback is a more limited frequency

response of the 2-wire interface.

Pros: Highest capacity, echo cancellation

Cons: Longer latency, limited frequency response

CAUTION:

Operating the BTR-240 while 2-wire settings are active and

without the proper system load could result in undesirable

audio quality including potentially loud audio bursts.

NOTE: For users that do not have an actual powered 2-wire

system, the link can still be configured. 2-wire

termination loads must be used on one of the base

stations. See the “Accessories and Replacement Parts”

section for ordering information.

The loop-thru feature of 2-wire enables the user to link several

base stations together with or without an actual 2-wire intercom

system. As long as the base stations have clear, non-overlapping

RF channels and are separated by the appropriate distance, then

up to 8 wireless full-duplex users can be supported on each

BTR-240 base station.

NOTE: RF channels must be completely clear and

non-overlapping and separation distances to obtain the

maximum capacity on each BTR-240 base station.

BTR-240s Linked via 4-Wire

Linking BTR-240 base stations via 4-wire has similar benefits

(capacity) and constraints (latency) as 2-wire. When used with a

Matrix system, several BTR-240s can be linked together. Since

4-wire does not have the loop thru capabilities as 2-wire, no more

than two (2) BTR-240s can be linked together in the absence of a

Matrix system. The additional benefit to using a 4-wire link is no

reduction in the audio frequency response as with 2-wire.

Pros: Higher capacity, optimal frequency response

Cons: Longer latency

NOTE: When linking two BTR-240s together without a Matrix

system, a custom made “cross-over” cable would be

required to link the 4-wire audio inputs to outputs. See

Section 11 for the wiring diagram and hardware

specifications for the 4-wire interface.

Once again, because the BTR-240s are linked with an analog

connection, there is no additional data overhead associated with

the link. As long as the base stations have clear, non-overlapping

RF channels and are separated by the appropriate distance, then

up to 8 wireless full-duplex users can be supported on each

BTR-240 base station.

NOTE: RF channels must be completely clear and

non-overlapping and separation distances to obtain the

maximum capacity on each BTR-240 base station.

7-8

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 ... 85 86

Comentarios a estos manuales

Sin comentarios

RTS TR-240 Especificaciones Pagina 50

Comentarios a estos manuales

Relacionado con productos y manuales para Sistemas de intercomunicación de la puerta RTS TR-240