
VEMCO – VR4-UWM Manual
66
9.3.2
Replacement Parts
Main O-ring seals
Large: Parker 2-260 (1 required)
Small: Parker 2-255 (1 required)
O-ring lubricant
Dow Corning Molykote 55
Desiccant packs
1/6U or 5g size (12 required)
Battery retaining ties
Parker 2-253 (2 required)
Fasteners for top cap
¼-20 x 3” Titanium bolt (6 required)
¼” Titanium flat washer (6 required)
¼” Titanium lock washer (6 required)
¼-20 Titanium nut (6 required)
9.3.3
Optional External Serial Port
VR4-UWM Connector
Subconn MCBH6M
Mating (cable) connector
Subconn MCIL6F
Dummy plug
Subconn MCDC6F
Locking sleeve
Subconn MCDLSF
Recommended lubricant
Dow Corning Molykote 44 Medium
Signal Levels
RS-232
Pinout
Pin #
Direction
Signal
1
In
RXD
2
N/A
SIGNAL GND
3
Out
TXD
4
In
CTS
5
Out
RTS
6
N/A
SHIELD GND
Baud rate
9600 bps