Description
Bently Nevada 161204-01 3500/91 EGD Gateway Module
Configured for Ethernet Global Data communication in 3500 rack data exchange networks, the Bently Nevada 161204-01 (3500/91 EGD Gateway Module) provides direct physical/electrical execution of monitored value and status transmission between 3500 machinery protection modules and external control systems via IEEE 802.3 Ethernet infrastructure.
Suffix Breakdown & Model Matrix
No validated manufacturer-defined suffix segmentation is provided for 161204-01 beyond its identification within the 3500/91 EGD Gateway Module class. The module should be treated as a fixed-order hardware assembly without functional suffix partitioning.
Hardware Specifications
| Parameter |
Specification |
| Model |
161204-01 |
| Brand |
Bently Nevada (Baker Hughes) |
| Origin |
USA (manufacturer system origin) |
| Weight |
0.79 kg |
| Dimensions |
241.3 × 24.4 × 241.8 mm |
| Operating Temp |
-30 deg C to +65 deg C |
| Power Consumption |
7.4 W typical |
| Series |
3500/91 |
| Protocols Supported |
EGD v2.01, Ethernet UDP/IP |
| Ethernet Standards |
IEEE 802.3 10BASE-T / 100BASE-TX, IEEE 802.3u 100BASE-FX |
| Connectors |
RJ-45, MT-RJ fiber interface |
| Rack Configuration |
1 full-height front slot + 1 rear slot |
| Input Voltage |
85–264 VAC or 110–300 VDC (variant dependent) |
| Humidity |
Up to 95% non-condensing |
Bently Nevada EGD Communication & Rotor Data Transport Behavior
Within Bently Nevada 3500 architecture, the 161204-01 module operates as an Ethernet Global Data (EGD) transport interface, mapping internal rack variables into UDP/IP cyclic frames. In TSI-linked monitoring chains, the gateway maintains deterministic data propagation timing to external PLC/DCS hosts while preserving internal 3500 signal integrity boundaries.
From a machinery dynamics perspective, the EGD stream typically carries derived vibration metrics originating from eddy-current proximity probe channels and keyphasor inputs. The gateway does not perform signal conditioning; instead, it preserves calibrated scaling data (including gap voltage representations used in rotor dynamic analysis chains) and forwards them without modification. Cross-rack timing alignment ensures consistent phase-referenced data distribution under rotating equipment transient conditions.
Frequently Asked Questions (FAQ)
Q: Does the 161204-01 perform any signal conditioning on vibration inputs?
A: No. The module functions strictly as an Ethernet gateway. Signal conditioning is executed by upstream 3500 monitoring modules before data encapsulation into EGD frames.
Q: Can the module operate with both copper and fiber Ethernet links simultaneously?
A: The hardware supports either 10/100BASE-TX (RJ-45) or 100BASE-FX (MT-RJ) interfaces depending on installation configuration, not simultaneous dual active media operation.
Q: What happens to data transmission during module hot swap?
A: During hot swap, EGD frame transmission from the affected rack segment is temporarily suspended until module reinitialization completes and network synchronization is restored.
Field Installation Guidelines
Install the module only in designated 3500 rack slots with correct front and rear alignment. Ensure the backplane connector is fully seated before applying Ethernet cabling. Maintain separation between fiber and power conductors to prevent EMI coupling. Shielded twisted-pair grounding must be terminated at a single-point earth reference within the rack chassis.
Ethernet cabling should follow IEEE 802.3 routing practices with minimum bend radius compliance for fiber MT-RJ interfaces. Avoid mechanical stress on RJ-45 connectors during enclosure servicing. Verify EGD network addressing consistency prior to system commissioning to prevent broadcast domain conflicts.
