Rear Terminal Layout - GE B90 UR Series Instruction Manual

3.1 DESCRIPTION
To properly insert a module, ensure that the correct module type is inserted into the correct slot position. The ejector/
inserter clips located at the top and at the bottom of each module must be in the disengaged position as the module is
smoothly inserted into the slot. Once the clips have cleared the raised edge of the chassis, engage the clips simultaneously.
When the clips have locked into position, the module will be fully inserted.
CPU modules have 100Base-FX connectors. These connectors must be individually disconnected from the module
before it can be removed from the chassis.
NOTE
The new CT/VT modules can only be used with new CPUs; similarly, old CT/VT modules can only be used with old
CPUs. In the event that there is a mismatch between the CPU and CT/VT module, the relay does not function and
a
NOTE
DSP ERROR
3
Do not touch any rear terminals while the relay is energized!
The small form-factor pluggable ports (SFPs) are pluggable transceivers. Do not use non-validated
transceivers or install validated transceivers in the wrong Ethernet slot, else damage can occur.
The relay follows a convention with respect to terminal number assignments which are three characters long assigned in
order by module slot position, row number, and column letter. Two-slot wide modules take their slot designation from the
first slot position (nearest to CPU module) which is indicated by an arrow marker on the terminal block. See the following
figure for an example of rear terminal assignments.
3-4
or error displays.
HARDWARE MISMATCH
Figure 3–6: REAR TERMINAL VIEW
B90 Low Impedance Bus Differential System
3 HARDWARE

3.1.3 REAR TERMINAL LAYOUT

GE Multilin