GE UR Series C70, Instruction Manual

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3-38 C70 Capacitor Bank Protection and Control System GE Multilin
3.4 MANAGED ETHERNET SWITCH MODULES 3 HARDWARE
3
3.4MANAGED ETHERNET SWITCH MODULES 3.4.1 OVERVIEW
The type 2S and 2T embedded managed switch modules are supported by UR-series relays containing type 9S CPU mod-
ules with revisions 5.5x and higher. The modules communicate to the C70 through an internal Ethernet port (referred to as
the UR port or port 7) and provide an additional six external Ethernet ports: two 10/100Base-T ports and four multimode ST
100Base-FX ports.
The Ethernet switch module should be powered up before or at the same time as the C70. Otherwise, the switch
module will not be detected on power up and the
EQUIPMENT MISMATCH: ORDERCODE XXX
self-test warning will be
issued.
3.4.2 MANAGED ETHERNET SWITCH MODULE HARDWARE
The type 2S and 2T managed Ethernet switch modules provide two 10/100Base-T and four multimode ST 100Base-FX
external Ethernet ports accessible through the rear of the module. In addition, a serial console port is accessible from the
front of the module (requires the front panel faceplate to be open).
The pin assignment for the console port signals is shown in the following table.
Figure 3–42: MANAGED ETHERNET SWITCHES HARDWARE
Table 3–6: CONSOLE PORT PIN ASSIGNMENT
PIN SIGNAL DESCRIPTION
1 CD Carrier detect (not used)
2 RXD Receive data (input)
3 TXD Transmit data (output)
4 N/A Not used
5 GND Signal ground
6 to 9 N/A Not used
NOTE
842867A2.CDR
Two 10/100Base-T
ports
Four 100Base-FX
multimode ports
with ST connectors
Independent power
supply. Options:
2S: high-voltage
2T: low-voltage
RS232
console port
REAR VIEW FRONT VIEW