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CPU status
Lead and reserve indication
Green arrow indicators show which processor is performing the lead function and which is the reserve.
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Honeywell 900RSM-0101 Redundancy Switch Module
Item NO.: 900RSM-0101
Price：Request a Quote
Warranty：1 year
Condition：Brand new and factory sealed
Inquire Email：sales1@apterpower.com
Mobile/WhatsApp：+8618020776782
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Detail
- Product NameHoneywell 900RSM-0101 Redundancy Switch Module
- Item NO.900RSM-0101
- Weight0.3600 kg = 0.7937 lb = 12.6986 oz
- CategoryPLC
- BrandHoneywell
- Creation Time2026-10-27
- Honeywell 900RSM-0101 indicates lead and reserve CPU status and provides keyed mode control in HC900 redundant racks.
HONEYWELLHC900
900RSM-0101
Redundancy Switch Module
Honeywell 900RSM-0101 indicates lead and reserve CPU status and provides keyed mode control in HC900 redundant racks.
Lead status
Reserve status
Keyed modes
CPU switchover
5 V DC22 mA max
Product dimensions: 3.7 x 14 x 13.6 cm. Weight: 0.36 kg (0.7937 lbs). Exact model identification is shown in the product photograph.
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Contact info
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Specifications
| Module supply | 5 V DC |
| Maximum current consumption | 22 mA |
| Controlled CPU arrangement | 2 redundant CPUs |
| Stationary key-switch positions | 3 |
| Momentary key-switch positions | 1 |
| Supplied removable keys | 2 |
| Operating temperature | 0 to 60 °C |
| Storage temperature | -40 to 70 °C |
| Operating humidity | 10 to 90% RH, non-condensing |
| Storage humidity | 5 to 95% RH, non-condensing |
| Lead/reserve indication | Green arrow LEDs |
| Installation position | Between the controller CPUs |
| Servicing under power | Insertion and removal supported |
The listed module ratings apply to the identified configuration. Field wiring, rack components and connected loads must match the selected system design.
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Description
Honeywell 900RSM-0101 is the redundancy switch module for HC900 redundant controller racks. Its nameplate specifies a maximum consumption of 22 mA at 5 V DC. The module interfaces with the lead and reserve processors. Directional indicators identify the active controller roles. A keyed switch provides coordinated mode control and a momentary switchover action. This HC900 redundancy module supports clear controller status indication and local operational control.
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Function
Mode key→CPU roles
Keyed operating control
The removable key selects controller modes and provides a momentary position for lead transfer.
05
Product Applications
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