20.12.  IGS-PTM ......................................................................................................... 143 
20.12.1.  Binary inputs ............................................................................................... 143 
20.12.2.  Binary open collector outputs ...................................................................... 143 
20.12.3.  Analog inputs .............................................................................................. 144 
20.12.4.  Analog output .............................................................................................. 144 
20.13.  IS-AIN8 ........................................................................................................... 144 
20.13.1.  Analog inputs .............................................................................................. 144 
20.14.  I-AOUT8 .......................................................................................................... 145 
20.15.  IS-BIN16/8 ...................................................................................................... 145 
20.15.1.  Binary inputs ............................................................................................... 146 
20.15.2.  Open collector outputs ................................................................................ 146 
20.15.3.  Frequency inputs ......................................................................................... 146 
20.16.  IGL-RA15 ........................................................................................................ 146 
20.16.1.  Power supply ............................................................................................... 146 
20.16.2.  Operating conditions ................................................................................... 146 
20.16.3.  Dimensions and weight ............................................................................... 147 
20.16.4.  Horn output ................................................................................................. 147 
20.17.  I-CB, I-CR ....................................................................................................... 147 
20.17.1.  Power supply ............................................................................................... 147 
20.17.2.  Operating conditions ................................................................................... 147 
20.17.3.  Dimensions and weight ............................................................................... 147 
20.17.4.  CAN bus interface ....................................................................................... 147 
20.17.5.  RS232 interface .......................................................................................... 148 
20.18.  I-LB ................................................................................................................. 148 
20.19.  IG-IB ............................................................................................................... 148 
20.20.  I-RBxx ............................................................................................................. 148 
20.21.  IG-MTU ........................................................................................................... 148 
20.22.  IG-MTU-2-1 ..................................................................................................... 149