1*d1312fcaSShawn McCarney# template_variable_values 2*d1312fcaSShawn McCarney 3*d1312fcaSShawn McCarney## Description 4*d1312fcaSShawn McCarney 5*d1312fcaSShawn McCarneyTemplate variable values for a specific chassis. 6*d1312fcaSShawn McCarney 7*d1312fcaSShawn McCarneyIn a multiple chassis system, two or more of the [chassis](chassis.md) may have 8*d1312fcaSShawn McCarneythe same hardware design. 9*d1312fcaSShawn McCarney 10*d1312fcaSShawn McCarneyA [chassis template](chassis_template.md) can be used to avoid duplicate data. 11*d1312fcaSShawn McCarneyThe chassis template defines the power sequencers, GPIOs, and voltage rails in a 12*d1312fcaSShawn McCarneychassis. One or more property values in the template contain variables, such as 13*d1312fcaSShawn McCarney`${chassis_number}`, to support chassis-specific values. 14*d1312fcaSShawn McCarney 15*d1312fcaSShawn McCarneyEach chassis using a template must specify values for each template variable. 16*d1312fcaSShawn McCarneyFor example, the value of `${chassis_number}` is "1" for the first chassis and 17*d1312fcaSShawn McCarney"2" for the second chassis. 18*d1312fcaSShawn McCarney 19*d1312fcaSShawn McCarneyAll chassis variable values are specified as a string (surrounded by double 20*d1312fcaSShawn McCarneyquotes). If the property value where the variable occurs has a different data 21*d1312fcaSShawn McCarneytype, such as number, the string will be converted to the required type. 22*d1312fcaSShawn McCarney 23*d1312fcaSShawn McCarney## Properties 24*d1312fcaSShawn McCarney 25*d1312fcaSShawn McCarney| Name | Required | Type | Description | 26*d1312fcaSShawn McCarney| :------------------------------------ | :------: | :----- | :------------------------------------------------------ | 27*d1312fcaSShawn McCarney| Variable 1 name (see [notes](#notes)) | yes | string | Value of the template variable with the specified name. | 28*d1312fcaSShawn McCarney| Variable 2 name (see [notes](#notes)) | yes | string | Value of the template variable with the specified name. | 29*d1312fcaSShawn McCarney| ... | | | | 30*d1312fcaSShawn McCarney| Variable N name (see [notes](#notes)) | yes | string | Value of the template variable with the specified name. | 31*d1312fcaSShawn McCarney 32*d1312fcaSShawn McCarney### Notes 33*d1312fcaSShawn McCarney 34*d1312fcaSShawn McCarney- The variable names are defined in the chassis template, such as 35*d1312fcaSShawn McCarney "chassis_number" and "sequencer_bus_number". 36*d1312fcaSShawn McCarney- The variable name must be specified without the "$", "{", and "}" characters. 37*d1312fcaSShawn McCarney 38*d1312fcaSShawn McCarney## Example 39*d1312fcaSShawn McCarney 40*d1312fcaSShawn McCarney```json 41*d1312fcaSShawn McCarney{ 42*d1312fcaSShawn McCarney "chassis_number": "2", 43*d1312fcaSShawn McCarney "sequencer_bus_number": "13" 44*d1312fcaSShawn McCarney} 45*d1312fcaSShawn McCarney``` 46