NEC X461S-R Series Control Spec

Summary

NEC X461S-R Series projector with both RS-232C serial and wired LAN (TCP/IP) control interfaces. The serial interface supports multiple baud rates (115200/38400/19200/9600/4800 bps). The LAN interface uses TCP port 7142 for command transmission. Supports power control, input routing, mute functions, picture adjustment, lens control, eco mode, and extensive status monitoring.

Transport

protocols:
  - serial
  - tcp
serial:
  baud_rate: null  # UNRESOLVED: multiple rates supported (115200/38400/19200/9600/4800 bps) - no single default stated
  data_bits: 8
  parity: none
  stop_bits: 1
  flow_control: none  # UNRESOLVED: RTS/CTS loopback present in pinout but flow_control mode not stated
addressing:
  port: 7142  # stated: "Use TCP port number 7142 for sending and receiving commands"
auth:
  type: none  # inferred: no auth procedure in source

Traits

- powerable       # inferred: POWER ON (015) and POWER OFF (016) commands present
- queryable       # inferred: multiple status/information request commands present
- routable        # inferred: INPUT SW CHANGE (018) command present
- levelable       # inferred: VOLUME ADJUST (030-2), PICTURE ADJUST (030-1), LAMP ADJUST (030-15) commands present

Actions

- id: power_on
  label: Power On
  kind: action
  params: []

- id: power_off
  label: Power Off
  kind: action
  params: []

- id: input_sw_change
  label: Input Switch
  kind: action
  params:
    - name: input
      type: integer
      description: Input terminal hex code (e.g., 01h=COMPUTER, 06h=VIDEO, 20h=LAN/NETWORK, A1h=HDMI)

- id: picture_mute_on
  label: Picture Mute On
  kind: action
  params: []

- id: picture_mute_off
  label: Picture Mute Off
  kind: action
  params: []

- id: sound_mute_on
  label: Sound Mute On
  kind: action
  params: []

- id: sound_mute_off
  label: Sound Mute Off
  kind: action
  params: []

- id: onscreen_mute_on
  label: Onscreen Mute On
  kind: action
  params: []

- id: onscreen_mute_off
  label: Onscreen Mute Off
  kind: action
  params: []

- id: picture_adjust
  label: Picture Adjust
  kind: action
  params:
    - name: target
      type: integer
      description: "Adjustment target: 00h=Brightness, 01h=Contrast, 02h=Color, 03h=Hue, 04h=Sharpness"
    - name: mode
      type: integer
      description: "Adjustment mode: 00h=absolute, 01h=relative"
    - name: value
      type: integer
      description: Adjustment value (16-bit, low-order byte first)

- id: volume_adjust
  label: Volume Adjust
  kind: action
  params:
    - name: mode
      type: integer
      description: "00h=absolute, 01h=relative"
    - name: value
      type: integer
      description: Adjustment value (16-bit, low-order byte first)

- id: aspect_adjust
  label: Aspect Adjust
  kind: action
  params:
    - name: value
      type: integer
      description: "Aspect mode hex code: 00h=AUTO, 01h=WIDE ZOOM, 02h=16:9, 03h=NATIVE, 04h=4:3, etc."

- id: other_adjust_lamp
  label: Lamp/Light Adjust
  kind: action
  params:
    - name: mode
      type: integer
      description: "00h=absolute, 01h=relative"
    - name: value
      type: integer
      description: Adjustment value (16-bit)

- id: remote_key_code
  label: Remote Key Code
  kind: action
  params:
    - name: key_code
      type: integer
      description: "Key code: 02h=POWER ON, 03h=POWER OFF, 05h=AUTO, 06h=MENU, 07h=UP, etc. (see key code table)"

- id: shutter_close
  label: Shutter Close
  kind: action
  params: []

- id: shutter_open
  label: Shutter Open
  kind: action
  params: []

- id: lens_control
  label: Lens Control
  kind: action
  params:
    - name: target
      type: integer
      description: "Target: 06h=Periphery Focus"
    - name: direction
      type: integer
      description: "Direction: 00h=Stop, 01h/02h/03h=Drive plus 1/0.5/0.25s, 7Fh=Drive plus, 81h=Drive minus, FDh/FEh/FFh=Drive minus 0.25/0.5/1s"

- id: lens_control_2
  label: Lens Control 2
  kind: action
  params:
    - name: command
      type: integer
      description: "FFh=Stop"
    - name: mode
      type: integer
      description: "00h=absolute, 02h=relative"
    - name: value
      type: integer
      description: Adjustment value (16-bit)

- id: lens_memory_control
  label: Lens Memory Control
  kind: action
  params:
    - name: operation
      type: integer
      description: "00h=MOVE, 01h=STORE, 02h=RESET"

- id: reference_lens_memory_control
  label: Reference Lens Memory Control
  kind: action
  params:
    - name: operation
      type: integer
      description: "00h=MOVE, 01h=STORE, 02h=RESET"

- id: lens_memory_option_set
  label: Lens Memory Option Set
  kind: action
  params:
    - name: option
      type: integer
      description: "00h=LOAD BY SIGNAL, 01h=FORCED MUTE"
    - name: value
      type: integer
      description: "00h=OFF, 01h=ON"

- id: lens_profile_set
  label: Lens Profile Set
  kind: action
  params:
    - name: profile
      type: integer
      description: "00h=Profile 1, 01h=Profile 2"

- id: eco_mode_set
  label: Eco Mode Set
  kind: action
  params:
    - name: mode
      type: integer
      description: "Eco mode hex code: 00h=OFF, 01h=ON/AUTO ECO, 02h=ECO1, 03h=ECO2, 04h=LONG LIFE, 05h=BOOST, 06h=SILENT"

- id: lan_projector_name_set
  label: LAN Projector Name Set
  kind: action
  params:
    - name: name
      type: string
      description: Projector name (up to 16 bytes, NUL-terminated)

- id: pip_picture_by_picture_set
  label: PIP/Picture-by-Picture Set
  kind: action
  params:
    - name: parameter
      type: integer
      description: "00h=MODE, 01h=START POSITION, 02h=SUB INPUT, 09h=SUB INPUT 2, 0Ah=SUB INPUT 3"
    - name: value
      type: integer
      description: Setting value (depends on parameter type)

- id: edge_blending_mode_set
  label: Edge Blending Mode Set
  kind: action
  params:
    - name: mode
      type: integer
      description: "00h=OFF, 01h=ON"

- id: freeze_control
  label: Freeze Control
  kind: action
  params:
    - name: state
      type: integer
      description: "01h=Freeze on, 02h=Freeze off"

- id: audio_select_set
  label: Audio Select Set
  kind: action
  params:
    - name: input
      type: integer
      description: Input terminal hex code
    - name: source
      type: integer
      description: "00h=Terminal specified in DATA01, 01h=BNC, 02h=COMPUTER"

- id: error_status_request
  label: Error Status Request
  kind: action
  params: []

- id: information_request
  label: Information Request
  kind: action
  params: []

- id: filter_usage_info_request
  label: Filter Usage Info Request
  kind: action
  params: []

- id: lamp_info_request_3
  label: Lamp Info Request 3
  kind: action
  params:
    - name: lamp
      type: integer
      description: "00h=Lamp 1, 01h=Lamp 2"
    - name: content
      type: integer
      description: "01h=Usage time, 04h=Remaining life"

- id: carbon_savings_request
  label: Carbon Savings Request
  kind: action
  params:
    - name: type
      type: integer
      description: "00h=Total Carbon Savings, 01h=Carbon Savings during operation"
- id: lens_control_request
  label: Lens Control Status Request
  kind: query
  params: []
- id: lens_memory_option_request
  label: Lens Memory Option Request
  kind: query
  params: []
- id: lens_information_request
  label: Lens Information Request
  kind: query
  params: []
- id: lens_profile_request
  label: Lens Profile Request
  kind: query
  params: []
- id: gain_parameter_request
  label: Gain Parameter Request
  kind: query
  params: []
- id: setting_request
  label: Setting Request
  kind: query
  params: []
- id: running_status_request
  label: Running Status Request
  kind: query
  params: []
- id: input_status_request
  label: Input Status Request
  kind: query
  params: []
- id: mute_status_request
  label: Mute Status Request
  kind: query
  params: []
- id: model_name_request
  label: Model Name Request
  kind: query
  params: []
- id: cover_status_request
  label: Cover Status Request
  kind: query
  params: []
- id: information_string_request
  label: Information String Request
  kind: query
  params: []
- id: eco_mode_request
  label: Eco Mode Status Request
  kind: query
  params: []
- id: lan_projector_name_request
  label: LAN Projector Name Request
  kind: query
  params: []
- id: lan_mac_address_request
  label: LAN MAC Address Request
  kind: query
  params: []
- id: pip_picture_by_picture_request
  label: PIP/Picture-by-Picture Status Request
  kind: query
  params: []
- id: edge_blending_mode_request
  label: Edge Blending Mode Request
  kind: query
  params: []
- id: base_model_type_request
  label: Base Model Type Request
  kind: query
  params: []
- id: serial_number_request
  label: Serial Number Request
  kind: query
  params: []
- id: basic_information_request
  label: Basic Information Request
  kind: query
  params: []

Feedbacks

- id: command_response
  type: object
  properties:
    - name: err1
      type: integer
      description: Error code high byte
    - name: err2
      type: integer
      description: Error code low byte

- id: error_status
  type: object
  description: Error status response (009)
  properties:
    - name: data01
      type: object
      description: "Bit0=Cover error, Bit1=Temperature, Bit3=Fan error, Bit4=Fan error, Bit5=Power error, Bit6=Lamp off, Bit7=Lamp moratorium"
    - name: data02
      type: object
      description: "Bit0=Lamp time exceeded, Bit1=Formatter error, Bit2=Lamp 2 off, Bit3=Extended status"
    - name: data03
      type: object
      description: "Bit1=FPGA error, Bit2=Temperature sensor, Bit3=Lamp not present, Bit4=Lamp data error, Bit5=Mirror cover, Bit6=Lamp 2 moratorium, Bit7=Lamp 2 time exceeded"
    - name: data04
      type: object
      description: "Bit0=Lamp 2 not present, Bit1=Lamp 2 data error, Bit2=Temperature dust, Bit3=Foreign matter, Bit5=Ballast comm error, Bit6=Iris calibration, Bit7=Lens not installed"

- id: projector_info
  type: object
  description: Information response (037) - projector name, lamp/filter usage times

- id: running_status
  type: object
  description: Running status response (078-2)
  properties:
    - name: power_status
      type: enum
      values: [standby, power_on]
    - name: cooling_status
      type: enum
      values: [not_executed, during_execution]
    - name: operation_status
      type: enum
      values: [standby_sleep, standby_power_saving, power_on, cooling, standby_error, network_standby]

- id: input_status
  type: object
  description: Input status response (078-3)

- id: mute_status
  type: object
  description: Mute status response (078-4)
  properties:
    - name: picture_mute
      type: enum
      values: [off, on]
    - name: sound_mute
      type: enum
      values: [off, on]
    - name: onscreen_mute
      type: enum
      values: [off, on]

- id: model_name
  type: string
  description: Model name string (078-5)

- id: cover_status
  type: enum
  values: [normal, closed]
  description: Cover status (078-6)

- id: gain_parameter
  type: object
  description: Gain parameter response (060-1) - brightness, contrast, color, hue, sharpness, volume, lamp adjust

- id: lens_position
  type: object
  description: Lens position response (053-1) - adjustment range and current value

- id: eco_mode
  type: integer
  description: Eco mode value (097-8)

- id: projector_name
  type: string
  description: LAN projector name (097-45)

- id: mac_address
  type: string
  description: MAC address in hex format (097-155)

- id: pip_pbp_status
  type: object
  description: PIP/Picture-by-Picture status (097-198)

- id: edge_blending_mode
  type: enum
  values: [off, on]
  description: Edge blending mode (097-243-1)

- id: serial_number
  type: string
  description: Serial number string (305-2)

- id: basic_info
  type: object
  description: Basic information response (305-3) - operation status, content displayed, signal type, mute states

Variables

# UNRESOLVED: variables that can be both set and queried are documented as action/feedback pairs.
# No discrete settings table with get/set semantics separate from actions.
# See Actions and Feedbacks sections for settable parameters.

Events

# UNRESOLVED: no unsolicited notification mechanism described in source.
# Device only responds to commands; no主动 push events documented.

Macros

# UNRESOLVED: no explicit multi-step macro sequences documented in source.

Safety

confirmation_required_for: []
interlocks:
  - description: "POWER ON command (015): While turning on the power, no other command can be accepted."
  - description: "POWER OFF command (016): While turning off the power (including cooling time), no other command can be accepted."
# UNRESOLVED: no explicit safety warnings for voltage, current, or physical interlock procedures in source.

Notes

Standby mode requirements: Some models require specific standby modes to receive commands via serial or LAN. Supported serial standby modes: Normal, Active, Eco, NORMAL, NETWORK STANDBY, SLEEP, OFF, ON, STANDBY POWER ON. Supported LAN standby modes: Normal, NORMAL, NETWORK STANDBY, SLEEP, HTBaseT STANDBY, OFF, ON, STANDBY POWER ON. Supported standby modes vary by model — some only support certain modes for LAN vs serial control.

Command encoding: All commands use hex notation with parameters ID1 (control ID), ID2 (model code), CKS (checksum = low-order byte of sum of preceding bytes), and optional DATA fields. Response format includes ERR1/ERR2 error codes.

Provenance

source_domains:
  - sharpdisplays.eu
source_urls:
  - https://www.sharpdisplays.eu/p/download/cp/Products/Projectors/Shared/CommandLists/NEC-ExternalControlManual-english.pdf
retrieved_at: 2026-04-29T13:53:23.401Z
last_checked_at: 2026-06-02T22:12:13.026Z

Verification Summary

verdict: verified
checked_at: 2026-06-02T22:12:13.026Z
matched_actions: 53
action_count: 53
confidence: medium
summary: "All 53 spec actions traced to source (dip-safe re-verify). (10 unresolved item(s) noted in Known Gaps.)"

Known Gaps

- "complete command byte encoding for all parameters not fully specified (referenced as \"Appendix\" but appendix content partially truncated in source)"
- "multiple rates supported (115200/38400/19200/9600/4800 bps) - no single default stated"
- "RTS/CTS loopback present in pinout but flow_control mode not stated"
- "variables that can be both set and queried are documented as action/feedback pairs."
- "no unsolicited notification mechanism described in source."
- "no explicit multi-step macro sequences documented in source."
- "no explicit safety warnings for voltage, current, or physical interlock procedures in source."
- "complete list of aspect mode hex codes — appendix references values but some (like FULL) have multiple possible codes (09h or 10h)"
- "HDBaseT standby mode details not fully specified in source"
- "lamp information for dual-lamp operation requires model-specific validation"

From the AI4AV catalog (https://ai4av.net) · ODbL-1.0