Dräger Polytron Pulsar 2 User Manual

The Dräger Polytron Pulsar 2 Digital Interface AI500
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Connector 1: Power AND Dräger Polytron Pulsar 2 Digital I/O
Removable polarised connector.
Phoenix Contact MST BT2.5/12-ST-5.08, 2.5mm
2
(14AWG)
Terminals 1,3,5,7,9,10 and 11, 12 are linked internally.
The Digital I/O ports A, B, C and D communicate bi directionally with up to four Dräger Polytron Pulsar 2 Receivers. They are compatible
with all variants of the Dräger Polytron Pulsar 2 but not with GD series detectors.
Digital current loop: Logic 1 (Mark): 0mA
Logic 0 (Space): 5mA
Data rate: 1200 bits / s
Protocol: Proprietary
Data integrity: CRC-16 checksum
Connector 2: EIA-RS-422/485 Serial Port
Removable polarised connector
Phoenix Contact MC 1.5/06-ST-3.81, 1.5mm
2
(16AWG)
For two-wire operation Terminals 15, 17 and 16, 18 can be linked internally with jumpers, accessed by removing the front cover. The driver
capability allows up to 32 AI500 units to be addressed in a in a four-wire multidrop system, giving access to a theoretical maximum of 128
Dräger Polytron Pulsar 2s. In practice, the number of units will normally be determined by considerations of polling rate. The node
address of each unit in the range 1..32 is held in non-volatile memory and can be configured using the Handheld Terminal (or Communi-
cator). All units respond to the node address 0. Similarly, each unit can be assigned an 11-character tag string to identify it independently
of its node address. This, together with the ability to assign tag strings to individual Dräger Polytron Pulsar 2s, allows quick and certain
checking of the complete system at commissioning time.
The markings A, B, A´, B´ are as defined in ISO/IEC 8482. The markings (+) and (-) show the polarity for Binary 1, stop-bit and idle state.
The host (master) system must provide idle-state biasing with this polarity. The +5V dc supply is provided for that purpose, or to power an
RS485-to-RC232C converter, such as the Amplicon 485F9i. The port, including the 5V supply, is electrically isolated from the 24V sup-
ply and the Dräger Polytron Pulsar 2 wiring.
Terminal:
Function:
1 Common
2 Digital I/O Dräger Polytron Pulsar 2
Receiver A
3 Common
4 Digital I/O Dräger Polytron Pulsar 2
Receiver B
5 Common
6 Digital I/O Dräger Polytron Pulsar 2
Receiver C
7 Common
8 Digital I/O Dräger Polytron Pulsar 2
Receiver D
9 Common (Power supply 0V)
10 Common (Power supply 0V)
11 Power supply +24V
12 Power supply +24V
Terminal:
EIA-RS-422/485 Function:
13 0V (ref)
14 +5V dc out (100mA max)
15 TXB (+)
16 TXA (-)
17 RXB´ (+)
18 RXA´(-)

Dräger Polytron Pulsar 2 Specifications

General

Brand	Dräger
Model	Polytron Pulsar 2
Category	Security Sensors
Language	English