Specifications

4 Ethernet Interface Processor (EIP) Installation and Configuration
Product Description
Table 2 lists the signals for the 15-pin Ethernet connector used on the EIP ports.
Table 2 Ethernet Connector Signals
EIP LEDs
The EIP contains the enabled LED that is standard on all interface processors and a bank of status
LEDs for each of the ports. After system initialization, the enabled LED goes on to indicate that the
EIP has been enabled for operation. The following conditions must be met before the EIP is enabled:
• The EIP is correctly connected to the backplane and receiving power.
• The EIP contains a valid microcode version that has successfully been downloaded.
• The CxBus or CyBus recognizes the EIP.
If any of these conditions is not met, or if the initialization fails for other reasons, the enabled LED
does not go on.
Below the enabled LED, a bank of LEDs indicate the state of each physical port. The upper row of
three LEDs indicates the state of port 0, the row below the first indicates port 1, and so on. Each row
of LEDs indicates that the corresponding port is in one of the of three possible states:
• Collision—goes on when a frame collision has been detected.
• Transmit—goes on when frames are being transmitted.
• Receive—goes on when frames are being received.
These LED states are described in more detail the section “Checking the Installation” on page 22.
Pin Circuit Description
3 DO-A Data Out Circuit A
10 DO-B Data Out Circuit B
11 DO-S Data Out Circuit Shield
5 DI-A Data In Circuit A
12 DI-B Data In Circuit B
4 DI-S Data In Circuit Shield
7 CO-A Control Out Circuit A (not used)
15 CO-B Control Out Circuit B (not used)
8 CO-S Control Out Circuit Shield (not used)
2 CI-A Control In Circuit A
9 CI-B Control In Circuit B
1 CI-S Control In Circuit Shield
6 VC Voltage Common
13 VP Voltage Plus
14 VS Voltage Shield
Shell PG Protective Ground/Case Ground