Bosch LTC 8555 Manual de instrucciones descargar pdf (Pagina 16)

12 en | Installation Allegiant Keyboards

F.01U.127.290 | 2.0 | 2009.03 Instruction Manual Bosch Security Systems, Inc.

Notes:

1. Allegiant accessory, purchased separately.

2. LTC 8557 Series Remote Hookup kit required (purchased separately).

3. Requires RS-485 fiber optic link designed to support Allegiant keyboard protocol

operating at 9600 baud.

4. Requires full duplex RS-232 compatible fiber optic link operating at 9600 baud.

5.2 LTC 8555/00 and LTC 8555/01 (standard keyboard) Installation

There are several options available for connecting these keyboard models to an Allegiant

system. The keyboard is supplied with a 3 m (10 ft) cable for local hookups, as shown in

FIGURE 1. Using the optional LTC 8558/00 cable, a keyboard can be remoted up to 30 m (100

ft) per Figure 2. In both of these cases, the keyboard cable can be connected directly to the

RJ-11 keyboard port located on the rear panel of the Allegiant system where it will be

provided with both data and power.

For connections beyond 30 m (100 ft), the LTC 8557 Series Remote Hookup Kit can be used,

as shown in Figure 3. The LTC 8557 is also required when the keyboard is remoted over a long

distance communication link, such as a fiber optic system shown in Figure 4.

Figure 5.1 Typical Configuration using supplied data/power cable

Figure 5.2 Typical Configuration using optional LTC 8558/00 cable

The larger Allegiant models support Keyboard Expander accessory units. These accessory

units are used with LTC 8557 Series Remote Hookup Kit, to provide additional keyboard

connections to the system, as shown in Figure 5.

LTC 8555/02, LTC 8555/03

RS-232 type Keyboards Maximum Distance

User-supplied RS-232 grade cable

1–30 m (1–100 ft), typical

Dial-up modem, Hayes compatible Unlimited

Fiber optic link, compatible with standard RS-232 protocol

5–10 km (3–6 miles), typical

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