GE QS24 UR - Manual (Page 17)

QUICKSTART GUIDE
UR SWITCH MODULE – QUICKSTART GUIDE QS–13
QS.4 Introduction to the 2S and 2T UR Managed Switch
Modules:
The UR-2S and UR-2T embedded managed Switch modules are supported in 9S CPU racks
with firmware
≥5.5x. The module communicates with the UR through an internal Ethernet
port, referred to as the "UR Port" or "Port 7," and provides the UR with six external Ethernet
ports: two 10/100BaseT and four Multi-mode ST 100 Base Fx ports. This greatly simplifies
the network configuration:
NOTE
Note The Ethernet Switch Module should be powered up before, or at the same time as, the UR
Relay. If not, the Switch Module will not be detected on power-up and the EQUIPMENT
MISMATCH: ORDERCODE XXX self-test warning will be issued.