Overview 
  Copyright ©ITECH Electronic Co., Ltd. 10 
 
Note 
Naming rules for this series of model are as follows: IT79XXX-YYY-ZZZ, 
wherein, XXX means rated power, YYY means rated voltage, and ZZZ 
means rated current. Take IT7915-350-90 for an example, the rated 
power is 15kVA, rated voltage is 350V and rated current is 90A. 
1.3 Optional accessories 
The IT7900 series supports the following optional accessories (sold separately), 
the details are as below: 
The interface expansion slot provided on the rear panel of the IT7900 series 
instrument allows users to flexibly expand according to their needs. Different 
interface cards can be selected to achieve different functions. 
The following optional accessories from ITECH are sold separately. Users need 
to purchase separately. 
GPIB 
communication 
interface
 
When the user needs to use GPIB 
interface to enable remote operation, this 
option is the right choice.
 
Interface card that includes RS-232 
communication interface and external 
analog. When the user needs to use RS-
232 or external analog interface to enable 
remote operation, this option is the right 
choice. 
Fiber optic 
modules and 
cables
 
Used for parallel connection between the 
units in a cabinet, including one fiber 
module and two fiber cables, with lengths 
of 1.5 meters and 0.3 meters.
 
The fiber optic module and cable are the 
necessary accessories for the parallel 
connection. Different numbers of fiber 
optic modules and cables are used in 
different numbers of parallels.
 
Fiber optic 
modules and 
cables
 
Used for parallel connection between 
cabinets, including one fiber module and 
one 2.5m fiber cable.
 
The fiber optic module and cable are the 
necessary accessories for the parallel 
connection. Different numbers of fiber 
optic modules and cables are used in 
different numbers of parallels.