Operating instructions
TransTel TD-1648i / TDS-600 Programming Manual 
23
Installation 
Caution  1. This system should be installed by qualified service personnel. 
2.  Do not install the Power Supply unless you have read the following instructions and 
completed all the installation and wiring. 
3.  STATIC SENSITIVE DEVICES! Please handle with care. 
Installing the Equipment 
Backboard 
Be sure to plan and allow enough space to mount and 
connect the key service unit, power supply and system 
battery back up if applicable. 
Key Service Unit 
Use the enclosed Hanging Template to locate the 
mounting position for the Key Service Unit. Drill 
appropriately spaced holes to fix the Hanging Template 
and mount the KSU on the wall.  When mounting the 
KSU, make certain that there is adequate room for the 
future system expansion and that the connecting power 
cable between the power mains and the KSU. The same 
applies for the battery back up unit. 
Power Supply 
Dedicated Power Source - The power supply must be connected to a dedicated AC outlet. 
Be sure that the third wire earth ground of the AC circuit is connected to a good electrical ground. If a music 
source is installed, it must be connected to a separate AC circuit rather than the system's dedicated AC line cord. 
Check Your Voltage Selection Jumper 
Verify that the input voltage and input voltage jumper are correct before you power on the system. The input 
voltage is set according to the Customer's requirement before shipping. However it is important to verify that the 
setting is correct prior to initial system power up. 
Power Supply voltage options for the unit: 
100-VAC: 100 to 120 V AC (50/60Hz) or 240-VAC: 205 to 265 V AC (50/60Hz). 
Installing expansion and optional cards 
In this step you will be installing printed circuit cards on to slots of the main board in the basic cabinet. Take your 
time and extra care to assure the printed circuit cards are properly aligned. After installing each option and 
expansion card, perform a visual inspection to assure the printed circuit card is installed properly. 
1.  Remove the 4 screws located at the corners of the cabinet and lift the front cover off. 
2.  Install the specific cards into the dedicated slots of G2-MBU as below card introduction. 










