Bosch D6100 User Manual

Conettix D6600/D6100 | Computer Interface Manual | 3.0  

Computer Communication Protocols 

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Bosch Security Systems, Inc. | 1/07 | 4998122703-01 

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3.2.4 

Ademco 4-2 Express (Message Type c) 

SIA Mode Description 

4-2 Express 
Example 

<LF><CRC><c><sequence#><receiver#><line#>[#aaaa|XY]<CR> 

 

Table 43: 

Ademco 4-2 Express (Message Type c) Byte Description 

 

Title Description 

LF 

Standard line feed character.  

CRC 

Cyclical redundancy check number.  

Message Type 

c  

sequence# 

The message sequence number. The valid sequence number range is 0001 to 9999. 

receiver# 

The receiver gateway that sent the message. Valid digits are 01 to 99 for the 
D6600/D6100. 

line# 
(Line/Group #) 

The line number of the line in the receiver gateway that sent the message. Valid digits are 00 
to 99. The receiver uses Line 0 (zero) for internal messages. 

account# 

The communicator's account number has four digits. 

XY 

Event code and Zone number.   

 

Figure 10:  Message sent to printer 

mm/ddshh:mmsLxxsE42sACCTsaaaasEVENT=XY

 

 

 

For lines that are grouped, Gxx appears 
instead of Lxx. 

 

Table 44: 

Ademco 4-2 Express (Message 
Type c) Printer Output 

 

Characters Description 

E42 

Ademco 4-2 Express format. 

Lxx:  

Line number. 

Gxx 

Grouped line numbers.