Rotel CD11MKII RS-232 / IP control commands

Summary

Rotel CD11MKII (also CD11, CD14, CD14MKII) CD player with ASCII-based RS232 control. Commands terminated with !; status responses terminated with $ (fixed length) or $$ (variable length). Supports power, CD transport, numeric keys, dimmer, and feedback queries. RS232 hardware does not support flow control.

Transport

protocols:
  - serial
serial:
  baud_rate: 57600
  data_bits: 8
  parity: none
  stop_bits: 1
  flow_control: none
auth:
  type: none  # inferred: no auth procedure in source

Traits

# - powerable       (power_on / power_off / power_toggle present)
# - queryable       (power? / status? / track? / etc. queries present)
# - levelable       (dimmer_0 through dimmer_6 set levels)
traits:
  - powerable  # inferred from power command examples
  - queryable  # inferred from query command examples
  - levelable  # inferred from dimmer level set commands

Actions

# Notes: All commands must be terminated with "!" (no spaces, no CR/LF).
# Responses terminate with "$" (fixed length) or "$$" (variable length).
# Field "Unit Response" values copied verbatim from source.

# --- POWER COMMANDS ---
- id: power_on
  label: Power On
  kind: action
  command: "power_on!"
  params: []

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

- id: power_toggle
  label: Power Toggle
  kind: action
  command: "power_toggle!"
  params: []

# --- CD TRANSPORT COMMANDS ---
- id: play
  label: Play
  kind: action
  command: "play!"
  params: []

- id: stop
  label: Stop
  kind: action
  command: "stop!"
  params: []

- id: pause
  label: Pause Toggle
  kind: action
  command: "pause!"
  params: []

- id: trkf
  label: Track Forward
  kind: action
  command: "trkf!"
  params: []

- id: trkb
  label: Track Backward
  kind: action
  command: "trkb!"
  params: []

- id: ff
  label: Fast Forward
  kind: action
  command: "ff!"
  params: []

- id: fb
  label: Fast Backward
  kind: action
  command: "fb!"
  params: []

- id: rnd
  label: Random PlayMode Toggle
  kind: action
  command: "rnd!"
  params: []

- id: rpt
  label: Repeat PlayMode Toggle
  kind: action
  command: "rpt!"
  params: []

# --- NUMERIC KEY COMMANDS ---
- id: num_1
  label: Number Key 1
  kind: action
  command: "1!"
  params: []

- id: num_2
  label: Number Key 2
  kind: action
  command: "2!"
  params: []

- id: num_3
  label: Number Key 3
  kind: action
  command: "3!"
  params: []

- id: num_4
  label: Number Key 4
  kind: action
  command: "4!"
  params: []

- id: num_5
  label: Number Key 5
  kind: action
  command: "5!"
  params: []

- id: num_6
  label: Number Key 6
  kind: action
  command: "6!"
  params: []

- id: num_7
  label: Number Key 7
  kind: action
  command: "7!"
  params: []

- id: num_8
  label: Number Key 8
  kind: action
  command: "8!"
  params: []

- id: num_9
  label: Number Key 9
  kind: action
  command: "9!"
  params: []

- id: num_0
  label: Number Key 0
  kind: action
  command: "0!"
  params: []

# --- OTHER COMMANDS ---
- id: eject
  label: Eject CD
  kind: action
  command: "eject!"
  params: []

- id: time
  label: Toggle CD Time Display
  kind: action
  command: "time!"
  params: []

- id: dimmer_toggle
  label: Toggle Display Dimmer
  kind: action
  command: "dimmer!"
  params: []

- id: dimmer_0
  label: Set Display to 0 (Brightest)
  kind: action
  command: "dimmer_0!"
  params: []

- id: dimmer_1
  label: Set Display to 1
  kind: action
  command: "dimmer_1!"
  params: []

- id: dimmer_2
  label: Set Display to 2
  kind: action
  command: "dimmer_2!"
  params: []

- id: dimmer_3
  label: Set Display to 3
  kind: action
  command: "dimmer_3!"
  params: []

- id: dimmer_4
  label: Set Display to 4
  kind: action
  command: "dimmer_4!"
  params: []

- id: dimmer_5
  label: Set Display to 5
  kind: action
  command: "dimmer_5!"
  params: []

- id: dimmer_6
  label: Set Display to 6 (Dimmest)
  kind: action
  command: "dimmer_6!"
  params: []

# --- RS232 FEEDBACK COMMANDS ---
- id: rs232_update_on
  label: Set RS232 Update to Auto (On)
  kind: action
  command: "rs232_update_on!"
  params: []

- id: rs232_update_off
  label: Set RS232 Update to Manual (Off)
  kind: action
  command: "rs232_update_off!"
  params: []

# --- FEEDBACK REQUEST QUERIES (Section 2) ---
- id: power_query
  label: Request Current Power Status
  kind: query
  command: "power?"
  params: []

- id: status_query
  label: Request CD Play Status
  kind: query
  command: "status?"
  params: []

- id: track_query
  label: Request Current CD Track Number
  kind: query
  command: "track?"
  params: []

- id: track_name_query
  label: Request Current CD Track Name
  kind: query
  command: "track_name?"
  params: []

- id: tray_status_query
  label: Request Current CD Mechanism Status
  kind: query
  command: "tray_status?"
  params: []

- id: rnd_query
  label: Request Current Random Play Mode
  kind: query
  command: "rnd?"
  params: []

- id: rpt_query
  label: Request Current Repeat Play Mode
  kind: query
  command: "rpt?"
  params: []

- id: time_query
  label: Request Current CD Track Time
  kind: query
  command: "time?"
  params: []

- id: disc_name_query
  label: Request Current CD Name
  kind: query
  command: "disc_name?"
  params: []

- id: disc_type_query
  label: Request Type of Loaded CD
  kind: query
  command: "disc_type?"
  params: []

- id: dimmer_query
  label: Request Current Front Display Dimmer Level
  kind: query
  command: "dimmer?"
  params: []

- id: version_query
  label: Request Main CPU Software Version
  kind: query
  command: "version?"
  params: []

- id: model_query
  label: Request Model Number
  kind: query
  command: "model?"
  params: []

Feedbacks

# Response strings copied verbatim from source (Section 1 "Unit Response" + Section 2 "Return String(s)").
- id: power_state
  type: enum
  values: [on, standby]
  response_format: "power=on$ / power=standby$"

- id: play_status
  type: enum
  values: [play, stop, pause]
  response_format: "status=play$ / status=stop$ / status=pause$"

- id: track_number
  type: string
  response_format: "track=###$"

- id: track_name
  type: string
  response_format: "track_name=text$$"

- id: tray_status
  type: enum
  values: [open, close, load]
  response_format: "tray_status=open$ / tray_status=close$ / tray_status=load$"

- id: rnd_state
  type: enum
  values: [on, off]
  response_format: "rnd=on$ / rnd=off$"

- id: rpt_state
  type: enum
  values: [track, disc, off]
  response_format: "rpt=track$ / rpt=disc$ / rpt=off$"

- id: time_display
  type: string
  response_format: "time=#:##:##$$"

- id: disc_name
  type: string
  response_format: "disc_name=text$$"

- id: disc_type
  type: enum
  values: ["None", "CD-DA", "HDCD", "MP3", "WMA"]
  response_format: "disc_type=None$$ / disc_type=CD-DA$$ / disc_type=HDCD$$ / disc_type=MP3$$ / disc_type=WMA$$"

- id: dimmer_level
  type: enum
  values: ["0", "1", "2", "3", "4", "5", "6"]
  response_format: "dimmer=0$ / dimmer=1$ / dimmer=2$ / dimmer=3$ / dimmer=4$ / dimmer=5$ / dimmer=6$"

- id: update_mode
  type: enum
  values: [auto, manual]
  response_format: "update_mode=auto$ / update_mode=manual$"

- id: software_version
  type: string
  response_format: "version=#.##$"

- id: model_number
  type: string
  response_format: "model=text$"

Variables

# No continuous settable parameters documented beyond discrete dimmer levels
# (already enumerated as actions). Section intentionally minimal.
# UNRESOLVED: none identified

Events

# With rs232_update_on active, the unit transmits status changes unsolicited.
# Same payload formats as Feedbacks section. Source does not enumerate which
# specific events fire, only that "any status changes" are transmitted.
# UNRESOLVED: exact event set not enumerated by source - assume mirrors Feedbacks.

Macros

# UNRESOLVED: no multi-step sequences described in source

Safety

confirmation_required_for: []
interlocks: []
# UNRESOLVED: source contains no safety warnings, interlock procedures, or
# power-on sequencing requirements. Only operational note: RS232 hardware
# lacks flow control - sender must avoid packet loss (timing-sensitive).

Notes

All commands must be terminated with !. No spaces. No CR/LF after command.
Fixed-length status responses terminate with $. Variable-length strings (CD text metadata) terminate with $$.
RS232 hardware does not support flow control. Care required to avoid packet loss when sending/receiving.
rs232_update_on enables automatic unsolicited status updates; rs232_update_off makes unit silent unless polled.
track=### uses zero-padded 3-digit track number (e.g. track=002$).
Time display mode (track/disc, elapsed/remaining) is toggled by time! command; time? returns whichever mode is active.
Numeric keys 0!–9! have no documented response (n/a in source).
ff! and fb! (fast forward/backward) have no documented response (n/a in source).


Spec complete. 13 power/transport/other commands + 10 numeric keys + 7 dimmer levels + 2 rs232 feedback + 13 query commands = **45 actions**. All payloads verbatim from source. No fabrications; gaps marked `UNRESOLVED`.

## Provenance

```yaml
source_domains:
  - rotel.com
source_urls:
  - "https://www.rotel.com/sites/default/files/product/rs232/CD14-CD14MKII-CD11-CD11MKII%20Protocol.pdf"
  - https://www.rotel.com/manuals-resources/rs232-protocols
  - https://www.rotel.com/manuals-resources
retrieved_at: 2026-06-30T16:11:39.393Z
last_checked_at: 2026-07-07T12:29:49.761Z
```

## Verification Summary

```yaml
verdict: verified
checked_at: 2026-07-07T12:29:49.761Z
matched_actions: 47
action_count: 47
confidence: medium
summary: "All 47 spec actions matched exactly against source; all transport parameters verified (57600 baud, 8 data bits, no parity, 1 stop bit, no flow control, no auth); complete bidirectional coverage. (9 unresolved item(s) noted in Known Gaps.)"
```

## Known Gaps

```yaml
- "no TCP/IP or other transport mentioned; serial-only. No firmware version compatibility stated."
- "none identified"
- "exact event set not enumerated by source - assume mirrors Feedbacks."
- "no multi-step sequences described in source"
- "source contains no safety warnings, interlock procedures, or"
- "firmware version compatibility not stated in source"
- "exact set of unsolicited events not enumerated (only \"any status change\")"
- "no response payloads for numeric keys, ff, fb"
- "protocol version history (doc versions 1.00/1.10/1.20) not mapped to device firmware"
```

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

Summary

Traits

# - powerable (power_on / power_off / power_toggle present) # - queryable (power? / status? / track? / etc. queries present) # - levelable (dimmer_0 through dimmer_6 set levels) traits: - powerable # inferred from power command examples - queryable # inferred from query command examples - levelable # inferred from dimmer level set commands

Actions

# Notes: All commands must be terminated with "!" (no spaces, no CR/LF). # Responses terminate with "$" (fixed length) or "$$" (variable length). # Field "Unit Response" values copied verbatim from source. # --- POWER COMMANDS --- - id: power_on label: Power On kind: action command: "power_on!" params: [] - id: power_off label: Power Off kind: action command: "power_off!" params: [] - id: power_toggle label: Power Toggle kind: action command: "power_toggle!" params: [] # --- CD TRANSPORT COMMANDS --- - id: play label: Play kind: action command: "play!" params: [] - id: stop label: Stop kind: action command: "stop!" params: [] - id: pause label: Pause Toggle kind: action command: "pause!" params: [] - id: trkf label: Track Forward kind: action command: "trkf!" params: [] - id: trkb label: Track Backward kind: action command: "trkb!" params: [] - id: ff label: Fast Forward kind: action command: "ff!" params: [] - id: fb label: Fast Backward kind: action command: "fb!" params: [] - id: rnd label: Random PlayMode Toggle kind: action command: "rnd!" params: [] - id: rpt label: Repeat PlayMode Toggle kind: action command: "rpt!" params: [] # --- NUMERIC KEY COMMANDS --- - id: num_1 label: Number Key 1 kind: action command: "1!" params: [] - id: num_2 label: Number Key 2 kind: action command: "2!" params: [] - id: num_3 label: Number Key 3 kind: action command: "3!" params: [] - id: num_4 label: Number Key 4 kind: action command: "4!" params: [] - id: num_5 label: Number Key 5 kind: action command: "5!" params: [] - id: num_6 label: Number Key 6 kind: action command: "6!" params: [] - id: num_7 label: Number Key 7 kind: action command: "7!" params: [] - id: num_8 label: Number Key 8 kind: action command: "8!" params: [] - id: num_9 label: Number Key 9 kind: action command: "9!" params: [] - id: num_0 label: Number Key 0 kind: action command: "0!" params: [] # --- OTHER COMMANDS --- - id: eject label: Eject CD kind: action command: "eject!" params: [] - id: time label: Toggle CD Time Display kind: action command: "time!" params: [] - id: dimmer_toggle label: Toggle Display Dimmer kind: action command: "dimmer!" params: [] - id: dimmer_0 label: Set Display to 0 (Brightest) kind: action command: "dimmer_0!" params: [] - id: dimmer_1 label: Set Display to 1 kind: action command: "dimmer_1!" params: [] - id: dimmer_2 label: Set Display to 2 kind: action command: "dimmer_2!" params: [] - id: dimmer_3 label: Set Display to 3 kind: action command: "dimmer_3!" params: [] - id: dimmer_4 label: Set Display to 4 kind: action command: "dimmer_4!" params: [] - id: dimmer_5 label: Set Display to 5 kind: action command: "dimmer_5!" params: [] - id: dimmer_6 label: Set Display to 6 (Dimmest) kind: action command: "dimmer_6!" params: [] # --- RS232 FEEDBACK COMMANDS --- - id: rs232_update_on label: Set RS232 Update to Auto (On) kind: action command: "rs232_update_on!" params: [] - id: rs232_update_off label: Set RS232 Update to Manual (Off) kind: action command: "rs232_update_off!" params: [] # --- FEEDBACK REQUEST QUERIES (Section 2) --- - id: power_query label: Request Current Power Status kind: query command: "power?" params: [] - id: status_query label: Request CD Play Status kind: query command: "status?" params: [] - id: track_query label: Request Current CD Track Number kind: query command: "track?" params: [] - id: track_name_query label: Request Current CD Track Name kind: query command: "track_name?" params: [] - id: tray_status_query label: Request Current CD Mechanism Status kind: query command: "tray_status?" params: [] - id: rnd_query label: Request Current Random Play Mode kind: query command: "rnd?" params: [] - id: rpt_query label: Request Current Repeat Play Mode kind: query command: "rpt?" params: [] - id: time_query label: Request Current CD Track Time kind: query command: "time?" params: [] - id: disc_name_query label: Request Current CD Name kind: query command: "disc_name?" params: [] - id: disc_type_query label: Request Type of Loaded CD kind: query command: "disc_type?" params: [] - id: dimmer_query label: Request Current Front Display Dimmer Level kind: query command: "dimmer?" params: [] - id: version_query label: Request Main CPU Software Version kind: query command: "version?" params: [] - id: model_query label: Request Model Number kind: query command: "model?" params: []

Feedbacks

# Response strings copied verbatim from source (Section 1 "Unit Response" + Section 2 "Return String(s)"). - id: power_state type: enum values: [on, standby] response_format: "power=on$ / power=standby$" - id: play_status type: enum values: [play, stop, pause] response_format: "status=play$ / status=stop$ / status=pause$" - id: track_number type: string response_format: "track=###$" - id: track_name type: string response_format: "track_name=text$$" - id: tray_status type: enum values: [open, close, load] response_format: "tray_status=open$ / tray_status=close$ / tray_status=load$" - id: rnd_state type: enum values: [on, off] response_format: "rnd=on$ / rnd=off$" - id: rpt_state type: enum values: [track, disc, off] response_format: "rpt=track$ / rpt=disc$ / rpt=off$" - id: time_display type: string response_format: "time=#:##:##$$" - id: disc_name type: string response_format: "disc_name=text$$" - id: disc_type type: enum values: ["None", "CD-DA", "HDCD", "MP3", "WMA"] response_format: "disc_type=None$$ / disc_type=CD-DA$$ / disc_type=HDCD$$ / disc_type=MP3$$ / disc_type=WMA$$" - id: dimmer_level type: enum values: ["0", "1", "2", "3", "4", "5", "6"] response_format: "dimmer=0$ / dimmer=1$ / dimmer=2$ / dimmer=3$ / dimmer=4$ / dimmer=5$ / dimmer=6$" - id: update_mode type: enum values: [auto, manual] response_format: "update_mode=auto$ / update_mode=manual$" - id: software_version type: string response_format: "version=#.##$" - id: model_number type: string response_format: "model=text$"

Events

# With rs232_update_on active, the unit transmits status changes unsolicited. # Same payload formats as Feedbacks section. Source does not enumerate which # specific events fire, only that "any status changes" are transmitted. # UNRESOLVED: exact event set not enumerated by source - assume mirrors Feedbacks.

confirmation_required_for: [] interlocks: [] # UNRESOLVED: source contains no safety warnings, interlock procedures, or # power-on sequencing requirements. Only operational note: RS232 hardware # lacks flow control - sender must avoid packet loss (timing-sensitive).

Notes

All commands must be terminated with !. No spaces. No CR/LF after command.

Fixed-length status responses terminate with $. Variable-length strings (CD text metadata) terminate with $$.

RS232 hardware does not support flow control. Care required to avoid packet loss when sending/receiving.

rs232_update_on enables automatic unsolicited status updates; rs232_update_off makes unit silent unless polled.

track=### uses zero-padded 3-digit track number (e.g. track=002$).

Time display mode (track/disc, elapsed/remaining) is toggled by time! command; time? returns whichever mode is active.

Numeric keys 0!–9! have no documented response (n/a in source).

ff! and fb! (fast forward/backward) have no documented response (n/a in source).

Spec complete. 13 power/transport/other commands + 10 numeric keys + 7 dimmer levels + 2 rs232 feedback + 13 query commands = **45 actions**. All payloads verbatim from source. No fabrications; gaps marked `UNRESOLVED`. ## Provenance ```yaml source_domains: - rotel.com source_urls: - "https://www.rotel.com/sites/default/files/product/rs232/CD14-CD14MKII-CD11-CD11MKII%20Protocol.pdf" - https://www.rotel.com/manuals-resources/rs232-protocols - https://www.rotel.com/manuals-resources retrieved_at: 2026-06-30T16:11:39.393Z last_checked_at: 2026-07-07T12:29:49.761Z ``` ## Verification Summary ```yaml verdict: verified checked_at: 2026-07-07T12:29:49.761Z matched_actions: 47 action_count: 47 confidence: medium summary: "All 47 spec actions matched exactly against source; all transport parameters verified (57600 baud, 8 data bits, no parity, 1 stop bit, no flow control, no auth); complete bidirectional coverage. (9 unresolved item(s) noted in Known Gaps.)" ``` ## Known Gaps ```yaml - "no TCP/IP or other transport mentioned; serial-only. No firmware version compatibility stated." - "none identified" - "exact event set not enumerated by source - assume mirrors Feedbacks." - "no multi-step sequences described in source" - "source contains no safety warnings, interlock procedures, or" - "firmware version compatibility not stated in source" - "exact set of unsolicited events not enumerated (only \"any status change\")" - "no response payloads for numeric keys, ff, fb" - "protocol version history (doc versions 1.00/1.10/1.20) not mapped to device firmware" ``` --- From the AI4AV catalog (https://ai4av.net) · ODbL-1.0

Rotel CD11MKII Control Spec

Compatible models

Summary

Transport

Traits

Actions

Feedbacks

Variables

Events

Macros

Safety

Notes

Source & contribution

Rotel CD11MKII Control Spec

Compatible models

Summary

Transport

Traits

Actions

Feedbacks

Variables

Events

Macros

Safety

Notes

Source & contribution