RTS User Station MCE-325, Инструкция пользователя

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10 Description & Specifications MCE-325 Programmable User Station
Bosch Security Systems, Inc. Technical Manual F.01U.193.228 Rev. 13
Rear Panel Features
Intercom Lines
Connectors J8 and J9 are parallel-wired for loop-through connection to additional stations. These connectors are used either
for 2-wire CH 1 and CH 2 input/output, or 4-wire CH A output. (The 4-wire CH A input is connected at the auxiliary
connector.)
Connector J10 is used for 2-wire CH 3 and CH 4 input/output, or 4-wire CH B output, but no loop-through connector is
provided for these channels. (The 4-wire CH B input is connected at the auxiliary connector.)
The MCE-325 presents a bridging impedance of 10,000
Ω
to the intercom line, and is designed for use with intercom lines
having a 200
Ω
line terminating impedance. A 200
Ω
termination plug is supplied (connected to J10) to prevent channels three
and four from oscillating when the MCE-325 is in 2-channel mode.
External Program Input
Two (2) ¼-inch phone jacks are provided for external program input. The station accepts line-level, balanced input. The two
(2) program inputs are mixed internally, and may be assigned (through internal programming) to right headphone, left
headphone, external speaker, or any combination of these. In addition, program A may be assigned (through internal
programming) to 2-wire CH 3 or 4-wire CH A; program B may be assigned to 2-wire CH 4, but cannot be assigned to a 4-wire
channel. The program assigned to channels is interrupted during talk output.
Speaker Output
A ¼-inch phone jack is provided for connection of an external speaker (8
Ω
minimum impedance). The speaker output is
compatible with the MCS325 speaker.
Auxiliary Connector
Standard Options on the 25-pin, female, D-Sub connector are:
•
Unswitched microphone output
•
ISO connection to a VCP6A/VCP12A/VCP12B
•
Microphone on/off switch
•
Remote headset
•
Remote panel microphone
•
Separate inputs for +10 to +15 volts DC, and +17 to +24 volts DC
•
Common/ground circuit
•
4-wire CH A and B inputs
•
Remote speaker mute
•
Key outputs