# Range

## Function

This API is used to get the parameter range of Alarm > PTZ Linkage.

## Request Message

### Parameter Description

###### Table 1

Parameter | Range | Type | Description
--- | --- | --- | ---
channel | "CH1"…"CHx", "IP_CH1"…"IP_CHx", "WIFI_CH1"…"WIFI_CHx" The channels supported by the device. | string array | IPC only use "CH1"。

Sample:

    POST /API/AlarmConfig/PTZLinkage/Range HTTP/1.1

    {
        "version":"1.0",
        "data":{}
    }

## Response Message

### Parameter Description

###### Table 2

Parameter | Range | Type | Description
--- | --- | --- | ---
channel_info |  | Json Object | Channel information refer to Table 3
channel_max |  | int | Maximum number of channels
support_copy |  | bool | Does the page support copy (dedicated to NVR and DVR)

###### Table 3

Parameter | Range | Type | Description
--- | --- | --- | ---
channel_info |  | Json Object | Channel information refer to Table 4
channel_max |  | int | Maximum number of channels
support_copy |  | bool | Does the page support copy (dedicated to NVR and DVR)

###### Table 4

Parameter | Range | Type | Description
--- | --- | --- | ---
CH1 |  | Json Object | Json see Table 5 for more information
... |  | Json Object |
IP_CH1 |  | Json Object |
... |  | Json Object |
WIFI_CH1 |  | Json Object |
... |  | Json Object |

###### Table 5

Parameter | Range | Type | Description
--- | --- | --- | ---
switch | true false | bool | Channel Enable Switch
motion |  | bool | Motion alarm trigger switch
pir |  | bool | PIR linkage switch
io |  | bool | Alarm input switch
ptz_info |  | array | see Table 6 for more information
all_alarm |  | json object | Alarm type switch, see Table 7 for information
copy_ch | "digit", "analog", "wifi", "local", "all" | string | Flag supporting channel replication (dedicated to NVR and DVR)

###### Table 6

Channel Information JSON

Parameter | Range | Type | Description
--- | --- | --- | ---
ptz_chn | “CH1” ”CH1x”“IP_CH1” ” IP_CH1x”“WIFI_CH1”…” WIFI_CH1x” | string | Channel alarm linkage The channel to which the alarm is linked.
linkage_ptz_point_index | 0,1,2,3....255 | int | Indication points corresponding to alarm linkage channels note:The client needs to be compatible with two methods. The old method, where type is string, had many redundant fields that could cause a crash. In version 8.2.3, it was changed to int to solve this problem. The hexadecimal string in the structure represents whether the option exists by bit, with a total of 256bits and small end storage. Bit0 represents the None option, 1-255bits represents the 1-255 numerical option, and bit 1 represents the existence, A bit of 0 indicates that it does not exist (for example: ptz_info. items. items [{"linkage_ptz point_index": "1", "linkage_ptz point_index": "2"...}] changed to ptz_info. item: "0000... 000")
ptz_switch |  | bool | Alarm linkage group switch (4 sets)

###### Table 7

Channel Information JSON

Parameter | Range | Type | Description
--- | --- | --- | ---
ptz_motion |  | bool | Motion alarm trigger switch
pir |  | bool | PIRgang switch
io |  | bool | Alarm input switch If the channel0（1）If the obtained value is 1, it indicates that Local<-1 (Local<-2) has been checked on the interface, otherwise it will not be checked.
linkage_lcd |  | bool | LCD gang switch
linkage_pid |  | bool | PID gang switch
linkage_sod |  | bool | SOD gang switch
linkage_pd |  | bool | PD gang switch
linkage_pdvd |  | bool | PDVD gang switch
linkage_fd |  | bool | FD gang switch
linkage_cc |  | bool | CC gang switch
linkage_sound |  | bool | Sound gang switch
linkage_vt |  | bool | Vt gang switch
linkage_ad |  | bool | AD gang switch
linkage_cd |  | bool | CD gang switch
linkage_qd |  | bool | QD gang switch
linkage_lpd |  | bool | LPD gang switch
linkage_rsd |  | bool | RSD gang switch
linkage_lpr |  | bool | LPR gang switch
linkage_fr |  | bool | FR gang switch
linkage_ai_pid |  | bool | AI PID gang switch
linkage_ai_lcd |  | bool | AI LCD gang switch
linkage_ai_pdvd |  | bool | AI PDVD gang switch

Sample:

    HTTP/1.1 200 OK
    Content-Type: application/json

    {
        "result": "success",
        "data": {
            "channel_max": 16,
            "support_copy": true,
            "ptz_info": {
                "type": "array",
                "min_size": 0,
                "max_size": 16,
                "items": [
                    {
                        "ptz_chn": "CH1",
                        "linkage_ptz_point_index": {
                            "type": "int32",
                            "min": 0,
                            "max": 255,
                            "items": "0000000000000000000000000000000000000000000000000000000000000001"
                        }
                    },
                    ...
                    {
                        "ptz_chn": "CH4",
                        "linkage_ptz_point_index": {
                            "type": "int32",
                            "min": 0,
                            "max": 255,
                            "items": "0000000000000000000000000000000000000000000000000000000000000001"
                        }
                    }
                ]
            },
            "channel_info": {
                "type": "object",
                "items": {
                    "CH1": {
                        "type": "object",
                        "items": {
                            "switch": {
                                "type": "bool"
                            },
                            "all_alarm": {
                                "type": "object",
                                "items": {
                                    "motion": {
                                        "type": "bool"
                                    },
                                    "pir": {
                                        "type": "bool"
                                    },
                                    "io": {
                                        "type": "bool"
                                    },
                                    "linkage_sod": {
                                        "type": "bool"
                                    },
                                    "linkage_cc": {
                                        "type": "bool"
                                    },
                                    "linkage_sound": {
                                        "type": "bool"
                                    },
                                    "linkage_vt": {
                                        "type": "bool"
                                    },
                                    "linkage_fd": {
                                        "type": "bool"
                                    },
                                    "linkage_intrusion": {
                                        "type": "bool"
                                    },
                                    "linkage_region_entrance": {
                                        "type": "bool"
                                    },
                                    "linkage_region_exiting": {
                                        "type": "bool"
                                    },
                                    "linkage_ad": {
                                        "type": "bool"
                                    },
                                    "linkage_cd": {
                                        "type": "bool"
                                    },
                                    "linkage_qd": {
                                        "type": "bool"
                                    },
                                    "linkage_lpd": {
                                        "type": "bool"
                                    },
                                    "linkage_rsd": {
                                        "type": "bool"
                                    },
                                    "linkage_lpr": {
                                        "type": "bool"
                                    },
                                    "linkage_fr": {
                                        "type": "bool"
                                    },
                                    "linkage_ai_pid": {
                                        "type": "bool"
                                    },
                                    "linkage_ai_lcd": {
                                        "type": "bool"
                                    },
                                    "linkage_ai_pdvd": {
                                        "type": "bool"
                                    },
                                    "linkage_ai_firedetet": {
                                        "type": "bool"
                                    },
                                    "linkage_ai_tempmeas": {
                                        "type": "bool"
                                    }
                                }
                            },
                            "ptz_info": {
                                "type": "array",
                                "min_size": 0,
                                "max_size": 4,
                                "items": [
                                    {
                                        "ptz_switch": {
                                            "type": "bool"
                                        }
                                    },
                                    {
                                        "ptz_switch": {
                                            "type": "bool"
                                        }
                                    },
                                    {
                                        "ptz_switch": {
                                            "type": "bool"
                                        }
                                    },
                                    {
                                        "ptz_switch": {
                                            "type": "bool"
                                        }
                                    }
                                ]
                            },
                            "copy_ch": {
                                "type": "string",
                                "items": [
                                    "digit",
                                    "analog",
                                    "wifi",
                                    "local",
                                    "all"
                                ]
                            }
                        }
                    },
                    ...
                    "CH4": {
                        "type": "object",
                        "items": {
                            "switch": {
                                "type": "bool"
                            },
                            "all_alarm": {
                                "type": "object",
                                "items": {
                                    "motion": {
                                        "type": "bool"
                                    },
                                    "pir": {
                                        "type": "bool"
                                    },
                                    "io": {
                                        "type": "bool"
                                    },
                                    "linkage_sod": {
                                        "type": "bool"
                                    },
                                    "linkage_cc": {
                                        "type": "bool"
                                    },
                                    "linkage_sound": {
                                        "type": "bool"
                                    },
                                    "linkage_vt": {
                                        "type": "bool"
                                    },
                                    "linkage_fd": {
                                        "type": "bool"
                                    },
                                    "linkage_intrusion": {
                                        "type": "bool"
                                    },
                                    "linkage_region_entrance": {
                                        "type": "bool"
                                    },
                                    "linkage_region_exiting": {
                                        "type": "bool"
                                    },
                                    "linkage_ad": {
                                        "type": "bool"
                                    },
                                    "linkage_cd": {
                                        "type": "bool"
                                    },
                                    "linkage_qd": {
                                        "type": "bool"
                                    },
                                    "linkage_lpd": {
                                        "type": "bool"
                                    },
                                    "linkage_rsd": {
                                        "type": "bool"
                                    },
                                    "linkage_lpr": {
                                        "type": "bool"
                                    },
                                    "linkage_fr": {
                                        "type": "bool"
                                    },
                                    "linkage_ai_pid": {
                                        "type": "bool"
                                    },
                                    "linkage_ai_lcd": {
                                        "type": "bool"
                                    },
                                    "linkage_ai_pdvd": {
                                        "type": "bool"
                                    },
                                    "linkage_ai_firedetet": {
                                        "type": "bool"
                                    },
                                    "linkage_ai_tempmeas": {
                                        "type": "bool"
                                    }
                                }
                            },
                            "ptz_info": {
                                "type": "array",
                                "min_size": 0,
                                "max_size": 4,
                                "items": [
                                    {
                                        "ptz_switch": {
                                            "type": "bool"
                                        }
                                    },
                                    {
                                        "ptz_switch": {
                                            "type": "bool"
                                        }
                                    },
                                    {
                                        "ptz_switch": {
                                            "type": "bool"
                                        }
                                    },
                                    {
                                        "ptz_switch": {
                                            "type": "bool"
                                        }
                                    }
                                ]
                            },
                            "copy_ch": {
                                "type": "string",
                                "items": [
                                    "digit",
                                    "analog",
                                    "wifi",
                                    "local",
                                    "all"
                                ]
                            }
                        }
                    }
                }
            }
        }
    }

## Error Code

See Response Messages Body and Common error_code for more information.