# Related Equipment and Cables

The RM-M7G and RCP-TX7 are best understood as part of a Sony SD camera remote
control ecosystem. Related camera control units and cables often contain the
pinout, mode, and compatibility details missing from the remote-panel manuals.

## CCA-7 Remote Cable

The CCA-7 family is the 10-pin remote cable used by the RM-M7G and RCP-TX7.

Known cable lengths:

- CCA-7-5.
- CCA-7-25.
- CCA-7-50.
- CCA-7-100.

Sony Japan CCA-7-25 page:
<https://www.sony.jp/pro/products/CCA-7-25/feature_1.html>

Important details from Sony Japan:

- Connects professional video cameras/camcorders and remote controls.
- 10-pin female to 10-pin male.
- Listed compatibility:
  - DXC-D30/D35/327/537/637 series, CA-325 series, CCU-M5/M7 to RM-M7G.
  - DXC-D30/D35/D50/D55 series to RCP-TX7/RCP-D50/RCP-D55.

The CCU-TX7 service manual includes a CCA-7 cable wiring diagram. Use that as
the better source for cable fabrication or continuity checks.

## CCU-TX7 / CCU-TX7P

Primary service manual:
<https://www.manualslib.com/manual/1068508/Sony-Ccu-Tx7.html>

The CCU-TX7 is directly relevant to RCP-TX7 because the RCP was designed for
CCU-TX7/TX7P camera systems with CA-TX7/TX7P camera adaptors.

Useful sections in the CCU-TX7 service manual:

- Connector input/output signals.
- REMOTE connector information.
- Connection connector list.
- CCA-7 cable wiring diagram.
- Board switch functions.
- Service information and disassembly.
- Video signal system adjustment.
- Triax interface system adjustment.
- Intercom/tally details.

The CCU-TX7 rear panel REMOTE connector is described as a 10-pin connector for
the RCP-TX7 via a CCA-7 cable.

## CCU-D50 / CCU-D50P

Official operation manual:
<https://pro.sony/s3/cms-static-content/operation-manual/3620534151.pdf>

Sony Japan product page:
<https://www.sony.jp/pro/products/CCU-D50/>

The CCU-D50 is useful because it bridges older RM-M7G-style operation and
RCP-TX7-style operation:

- `M5A mode` supports basic control using RM-M7G.
- `TX7 mode` supports more detailed camera operation using RCP-TX7.

The official CCU-D50 manual lists RCP-D50/D51, RCP-TX7, and RM-M7G as remote
control options. It also includes a section on using the RM-M7G remote control
unit and describes panel active handoff behavior.

The Japanese CCU-D50/CA-D50 catalog notes:

- CCU-D50 can use RM-M7G in M5A mode for basic DXC/DSR control.
- CCU-D50 can use RCP-TX7 in TX7 mode for broader picture-making controls.
- RCP-TX7 connector is circular 10-pin.
- RCP-TX7 power is DC 12 V, 10 V to 17 V range.
- RCP-TX7 power consumption is 4.0 W.

## DXC-D30 / DXC-D30WS

DXC-D30 user manual mirror:
<https://manualmachine.com/sony/dxcd30/551509-user-manual/>

This is useful for protocol research because it explicitly says the 10-pin
remote connector for RM-M7G and RCP-TX7 is designed according to RS-232C, and
that external PC control is possible with the proper Sony protocol.

System diagrams show:

- RM-M7G connected through CCA-7.
- RCP-TX7 connected through CCA-7.
- CCU-M7 / CCU-M5 camera control units.
- CCU-TX7 / CA-TX7 triax system.

## DXC-327B / DXC-327BP

Official Sony operating instructions PDF:
<https://pro.sony/s3/cms-static-content/operation-manual/3856085221.pdf>

Useful RM-M7G notes:

- RM-M7G connects with CCA-7-5/25/50/100 camera remote cable.
- CAMERA SELECT switch on RM-M7G should be set to `1`.
- Some RM-M7G controls do not affect camera output in this system.
- Some camera-side switches are disabled while RM-M7G is connected.

## DSR-390 / DSR-570WS Family

ManualMachine mirror:
<https://manualmachine.com/sony/powerhaddsr570wspl/1203049-user-manual/>

Useful notes:

- Has a 10-pin REMOTE connector for RM-M7G.
- CAMERA SELECT on RM-M7G should be set to `1`.
- EZ mode cannot be used while RM-M7G is connected.
- Power should be off before connecting or disconnecting remote equipment.