Overview
TheGE UR9CHalso cataloged astheUR9CHfiber optic communication module, operates as a dedicated hardware component for Ethernet data transport withinUR Series Universal Relay communication backplane architectures. Configured for optical 10BaseF signal transmission in UR platform networking layers,theGE UR9CH(UR9CHFiber Optic Communication Module)provides direct physical/electricalexecution.
Suffix Breakdown & Model Matrix
Single-order configuration model. No manufacturer-published suffix segmentation or option code structure is defined for UR9CH.
Hardware Specifications
| Parameter | Specification |
|---|---|
| ModelBrand | GE Multilin UR9CH |
| Weight | 0.4 to 0.6 kg |
| Dimensions | Not specified (compact relay plug-in form factor) |
| OperatingTemp | -40 degC to +70 degC |
| PowerConsumption | Not specified |
| Interface | 10BaseF fiber optic Ethernet |
| Isolation | Optical isolation |
| Protocol Support | Standard Ethernet communication within UR platform |
GE UR9CH Industrial Control Network Communication Behavior
The UR9CH integrates into UR Series relay backplane communication structures, where deterministic data exchange is governed by internal UR platform timing and Ethernet frame handling logic. Within GE industrial control architectures, backplane bus communication velocity and firmware flash compatibility are managed at the relay controller level, allowing synchronized data routing between protection, monitoring, and configuration nodes without external arbitration layers. The 10BaseF optical layer eliminates conductive coupling paths, maintaining signal integrity across electrically noisy substation environments.
Frequently Asked Questions
Q: Does the UR9CH support hot-swap during relay operation?
A: Hot-swap behavior depends on the UR chassis implementation. Module insertion/removal typically requires system-level service state to avoid backplane communication interruption.
Q: Is firmware stored on the UR9CH module?
A: No firmware execution layer is defined on the communication module. Operational logic resides in the UR relay controller; the module functions as a physical transport interface.
Q: What is the backplane load contribution of the UR9CH?
A: The module contributes minimal logical load; primary consumption is limited to optical transceiver interface power drawn from the UR chassis backplane supply.
Field Installation Guidelines
The UR9CH shall be installed only in de-energized UR Series relay chassis slots designed for communication modules. Fiber optic connectors must be inspected for end-face contamination prior to insertion, with cleaning performed using approved lint-free optical swabs. Minimum bend radius of fiber patch leads shall be maintained according to standard 10BaseF optical handling practice to prevent signal attenuation. Ensure module seating is fully engaged in the backplane connector to maintain optical isolation continuity and deterministic Ethernet frame alignment.














