I am replacing an existing old bell box with a Reson 8 bell box 8EP420. My alarm panel is a Optima G4. They are connected via a 4 core cable. 
									The existing panel wiring is as follows: 
									Panel Bell box 
									Strobe+ (no connection) 
									A link between T and A 
									Strobe- (yellow) 
									A (blk) SCB 
									D (red)Bell+ 
									B (blue) Bell- 
									 
									The Reson8 install guide only shows a 5 wire system: 
									 
									Panel Bell box 
									Strobe- Stb- 
									B (Bell-) Trig- 
									A- Hold off - 
									D (Bell+) Hold off + 
									T- Rtn - 
									 
									I cant work out how I should wire the Reson8 from this. 
									 
									Any Alarm installers able to offer advice?
								
							
							
								 
							
						
					
				
				
					
						 
					
					
						
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