Two alarm inputs
1783-BMS12T4E2CGNK and 1783-BMS12T4E2CGP provide two alarm-input circuits referenced to the REF terminal.
MANAGED ETHERNET · POE · DLR
Allen-Bradley 1783-BMS12T4E2CGNK / 1783-BMS12T4E2CGP Stratix 5700 Switches
Two 18-port managed switches separated by NAT and conformal-coating options.
18-PORT MANAGED5700
STRATIX 5700
Managed Switch Overview
Allen-Bradley 1783-BMS12T4E2CGNK and 1783-BMS12T4E2CGP are 18-port managed switches in the Stratix 5700 family. Both units switch industrial Ethernet traffic through full-firmware managed-switch functions.
The port structure of 1783-BMS12T4E2CGNK and 1783-BMS12T4E2CGP consists of twelve 10/100 Mbps RJ45 ports, four PoE ports and two 10/100/1000 Mbps dual-purpose combination ports. Control power is 12–48 V DC Class 2/SELV, and the PoE input is 48 V DC with a maximum of 30 W per PoE port.
Both 1783-BMS12T4E2CGNK and 1783-BMS12T4E2CGP support DLR and CIP Sync / IEEE 1588 PTP. The CGNK configuration includes NAT and conformal coating, while the CGP configuration has neither NAT nor conformal coating.
VERIFIED OPERATING VALUES
Port & Environmental Data
| Technical Item | 1783-BMS12T4E2CGNK | 1783-BMS12T4E2CGP |
|---|---|---|
| Brand | Allen-Bradley | Allen-Bradley |
| Product Type | Stratix 5700 managed switch | Stratix 5700 managed switch |
| Brand Country | United States | United States |
| Total Ports | 18 | 18 |
| Fast Ethernet Copper Ports | 12 | 12 |
| PoE Ports | 4 | 4 |
| Gigabit Combo Ports | 2 | 2 |
| NAT Capability | Yes | No |
| Conformal Coating | Yes | No |
| DLR Support | Yes | Yes |
| CIP Sync / PTP | Yes | Yes |
| Control Power | 12–48 V DC, Class 2/SELV | 12–48 V DC, Class 2/SELV |
| PoE Power Source | Separate 48 V DC | Separate 48 V DC |
| Maximum PoE per Port | 30 W | 30 W |
| Dimensions (W × H × D) | 12.7 × 12.95 × 13.58 cm | 12.7 × 12.95 × 13.58 cm |
| Operating Temperature | -40–60 °C | -40–60 °C |
| Lifecycle | Discontinued 1 September 2024 | Discontinued 1 September 2024 |
ALARM CONNECTIVITY
External Alarm Interfaces
Form C output
One alarm-output circuit provides normally open, common and normally closed dry contacts.
Configurable relay state
The output relay can be configured as normally energized or normally de-energized through the command-line interface.
NETWORK DIAGNOSTICS
Port and Startup Diagnostics
Front-panel indicators distinguish topology discovery, an established link and startup failure.1783-BMS12T4E2CGNK / 1783-BMS12T4E2CGP
On 1783-BMS12T4E2CGNK and 1783-BMS12T4E2CGP, a port indicator is amber while Spanning Tree Protocol discovers topology and checks for loops.
- The discovery period can take up to 30 seconds before the port indicator turns green.
- Green indicates that the switch and connected device have established a link.
- During power-up, the Setup indicator blinks green while the IOS image loads; an incomplete startup routine is reported as a startup failure.
FIELD QUESTIONS
Network Deployment Questions
What is the main difference between 1783-BMS12T4E2CGNK / 1783-BMS12T4E2CGP?+
CGNK includes NAT and conformal coating. CGP does not include those two options; their port count and core managed features otherwise align.
How many usable ports are provided by 1783-BMS12T4E2CGNK / 1783-BMS12T4E2CGP?+
Each has 18 ports: 12 Fast Ethernet copper, four PoE and two Gigabit dual-purpose combination ports.
Why is a separate 48 V source needed for 1783-BMS12T4E2CGNK / 1783-BMS12T4E2CGP?+
The main switch accepts 12–48 V DC, but PoE delivery requires the separate 48 V supply sized for the connected powered devices.
Can every node be configured as DLR supervisor on 1783-BMS12T4E2CGNK / 1783-BMS12T4E2CGP?+
Supervisor roles should be deliberate and documented. Configure precedence and test ring recovery instead of enabling supervision without a topology plan.
What installation environment applies to 1783-BMS12T4E2CGNK / 1783-BMS12T4E2CGP?+
They are open-type indoor devices for a suitable enclosure, Pollution Degree 2 and Overvoltage Category II conditions up to 2000 m unless further engineering is applied.
What should be retained before replacing 1783-BMS12T4E2CGNK / 1783-BMS12T4E2CGP?+
Back up the switch configuration, VLAN and NAT data where applicable, DLR settings, time-sync roles, IP addresses and port diagnostics.
MOORE AUTOMATION
Why Choose Moore Automation
Why Choose Moore Automation
Configuration-aware sourcing for industrial networks
We treat suffix options, lifecycle and network role as part of the quotation instead of reducing a managed switch to its port count.
Exact suffix checkLifecycle visibilityClear documentationInternational delivery
www.mvme.cn
MULTI-BRAND INDUSTRIAL INVENTORY
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