Bosch LTC 5104 Instruction Manual download pdf (Page 9)

Bosch Security Systems | 7 April 2004

LTC 5104, LTC 5108 Series | Instruction Manual | Installation

4.5 Alarm Inputs and Output

(Accessory Output)

A cable with a connector is supplied to connect alarm

closures or other accessories to the switcher.

The alarm inputs can be triggered by either a contact

closure selectable normally open or closed (e.g., switch

or relay) to ground or by a logic ground (e.g., motion

detector output).

The alarm output creates a short between the two

output pins when an alarm occurs and open circuits

the pins when no alarms are active (triggered). The

alarm output has a maximum carrying current of 1 A

and a maximum switching voltage of 40 V AC/DC.

The alarm output can be used to signal a VCR, lamp,

or relay.

CAUTION: Do not apply external voltages

to the alarm inputs. Use only isolated

closures. Precautions should be taken

particularly on long runs to prevent pickup of

spurious signals from associated wiring, which

may give false inputs or damage the switcher.

4.6 Programming System Setup

Configuration options are provided through on-screen

menus. These menus are accessed by using the

DWELL key. With video present on the monitor, a

momentary press and release of the DWELL key

will gain easy access to the Dwell Time Menu (see

SCREEN 1).

Screen 1

The remaining configuration menus (8 for the

LTC 5104 Series and 9 for the LTC 5108 Series) are

also accessed with the DWELL key. With video

present on the monitor, press and hold the DWELL

key for 1 second; the monitor will display SCREEN 2.

Screen 2

To advance through these seven or eight menus, press

RUN/next. When the last menu is displayed,

RUN/next automatically exits the configuration mode.

The configuration mode also exits automatically if

there is no activity for 60 seconds. Use DWELL again

to exit the configuration mode immediately. Any

changes made during configuration are acknowledged

regardless of how the configuration mode is exited.

4.7 Resetting to Default Programming

To restore factory default program settings, press

and hold SKIP/clr and then press the ALARM key

for one second (see SCREEN 3).

Screen 3

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 19 20

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Bosch LTC 5104 Instruction Manual Page 9

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