Looking at the top of the RCU (from the rear, as the crewmen did when it was mounted on the EMU), the features are as follows, from left to right:
1)The suit fan switch
2)Warning Indicators (called "flags") for Oxygen, etc.
3)Oxygen Quantity Indicator
4)Communications (Radio) Mode Selector
On the bottom of the unit are located controls for radio volume, the suit water pump, and a radio push-to-talk switch. The electrical umbilical which connected the RCU to the PLSS was also located here.
On the right side of the unit (again looking from the rear) was mounted the OPS actuator, used to supply emergency oxygen in case of a suit failure
The left side was featureless, except for a bar and strap used to operate the clamps that attached the unit to the EMU.
On the front face of the unit, (as seen standing in front of the crewman) was the Hasselblad camera mount, and the crewman's name tag (in red for the Commander, and in black for the Lunar Module Pilot).
On the rear face was a set of clamps used to attach the RCU to the suit. Two upper clamps attached to the PLSS shoulder straps, and a 3rd one attached to a bracket on the fornt of the EMU. A small strap was included to operate the clamps with the bulky lunar gloves on.
 |
 |
|
Rear face |
 |
 |
 |
Top face |
Bottom |
Left side/back |
 |
 |
 |
Left side |
Actuator bracket |
Front face |
 |
 |
Side view |
End view of the plug. |
Editor:Yang Jie
