Bosch SE485 User Manual

SE485

Installation Instructions

EN

Interface

SE485 | Installation Instructions |

SE485

Transponder

RX- TX­RX+ TX+
TX- RX­TX+ RX+

TX+

GND

+9V

1

1.0 Introduction

EN | 2

1.0 Introduction

The SE485 is designed as an interface between the
RS-485 signal bus of the Security Escort Transponder
and the Serial Bus (RS-232) of the Security Escort
Central Station.

2.0 Specifications

Table 1: Specifications

Dimensions

Power

Recommended
Cable

Compatibility

135 mm x 85 mm x 30 mm
( 5.375 in. x 3.3125 in. x 1.1875 in.)

Use the included 120 VAC adapter to
9 VDC, 300 mA or power from the
transponder.

Two twisted pair, four conductor,

0.8 mm (22 AWG)
EA500B Transponder

EA501B Transponder

3.0 Installation

To install the SE485:

1. Remove the cover by removing the cover screws
(see Figure 1).

Figure 1: SE485 Enclosure

Table 2: Wiring Chart

4.0 Installation and Operation
Notes

• Each transponder must have its own address.

• For the Security Escort system to maintain operation,

the SE485 must be powered at all times. Use the 9 V
adaptor provided plugged into an Uninterrupted
Power Supply (UPS).

• The SE485 can also be powered from the

transponder’s 9 V output connected to the
9 VDC input wiring connectors (see Figure 3).

• Up to four SE485s can be included in an installation.

For multiple SE485s, use the connector cable
provided.

Figure 3: Transponder Power

1 - Cover screws

2. Connect the wiring (see Figure 2).

3. After wiring the system, replace the cover and

4. Wire the connectors as indicated in Table 2.

Bosch Security Systems | 06/03| 30885D

1

1 - 9 VDC input from transponder

power up the unit.