Operating instructions
TransTel TD-1648i / TDS-600 Programming Manual 
21
System Installation - Introduction 
This section provides directions for installing the system and optional equipment. 
The installation must be performed by qualified service personnel. 
Main components of the system are: 
NOTE: Please follow the directions step by step. The TD-1648i/TDS-600 system should be installed in strict 
accordance with this manual. 
Key Service Unit, which includes: 
•  Power Supply Unit (G2-PWU) 
•  Main KSU (G2-MMU) 
•  CPU Unit (G2-IPU) 
•  Multi-Service Unit (G2-MSU) 
•  Trunk Unit (G2-TKU / G2-SIU / G2-PIU) 
•  Digital Station Unit (G2-STU) 
Optional Expansion Cards: 
•  Trunk Card (G2-TKU / G2-SIU / G2-PIU) 
•  Digital Station Card (G2-STU – four digital twin 
port circuits) 
•  Single Line Station Card (G2-SLU – eight single 
line port circuits) 
•  G2-CIC Card (Caller ID Card - four port circuits) 
•  Voice Mail Unit (G2-VMU) 
•  LAN Management Unit (G2-LMU) 
•  Metering Card (G1-MDC) 










