Operating instructions
TransTel TD-1648i / TDS-600 Programming Manual 
25
Installing CPU and option cards 
G2-IPU 
1.  SW1: Reset button 
2.  JP1: Terminators for bus expansion of multi-cabinet. 
3.  JP2: Terminators for bus expansion of multi-cabinet. 
4.  Socket for the HDLC controller for bus expansion of multi-cabinet. 
5.  LED1: Heart beat LED 
6.  CN6: connector for expanding cabinet 
7.  CN5: connector for expanding cabinet 
8.  CN9: LCD connector 










