Installation guide

Rev 1.1 9/22/14 40
8. USR3500 Accessories
8.1. Optional Accessories
The following optional accessories are available for use with the USR3500:
6-wire cable accessory with IO (DC IN, GND, Vref, GPIO25/INT1, GPIO35,
ON/OFF) Refer to the following table for the color-coding of the 6-wire cable
accessory.
Diversity and GPS antennas
Ethernet expansion card (Refer to the Reference Guide at
http://www.usr.com/support/3500 for more information about the card.)
8.1.1. 6-wire Cable Accessory
Table 21. 6-wire Cable Accessory Description
Length 1.5M
Connection 10-pin Microfit female connector to 6-wire open ends
Fuse 2A/250V slow break fuse
Table 22. 6-Wire Cable Accessory Color Coding
IO
Cable Accessory Color
DC-IN
RED
GND
BLACK
VREF
GREEN
GPIO35
ORANGE
ON/OFF
YELLOW
GPIO25/INT1
BROWN
Note: The above items are ONLY considered as optional accessories of the USR3500. They are NOT
considered as part of the USR3500.