GBCS 16.2 / 0x8F1D / Message Patterns
GSME Power Supply Loss
Select a generating device type above to see the alert delivery pattern.
Message Pattern
Success Examples
The device detects the condition and generates GBCS event/alert code 0x8F1D.
The device transmits a GBCSResponse/DeviceAlertMessage to the DSP via the WAN. Payload contains alert code and timestamp only (Generic Alert Structure).
DF090300000000000000010800DB1234
567890010890B3D51F30010000000210
00190F20000001000202128F1D090C07
EA0501FF0C000000800000401FBAB9FB
6C0FAB712D155092B69DA5829456B181
7229080E87A26088DA737B5EAC4D12F4
075C4C300BCBFE09E704F18016B3D52A
E92476D6C3E3AECCECBC8DA5
View in GBCS Parser →DSP authenticates the GBCSResponse against the device certificate and validates the alert content.
DSP delivers the alert to the relevant Known Remote Party based on the alert code and triggering device type. The DUIS Response (sr:Response) wraps the raw GBCS payload in sr:GBCSPayload (base64).
<?xml version="1.0" encoding="UTF-8"?>
<sr:Response schemaVersion="5.4" xmlns:ns5="http://www.dccinterface.co.uk/sm" xmlns:ns4="http://www.dccinterface.co.uk/S1SP" xmlns:sr="http://www.dccinterface.co.uk/ServiceUserGateway" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:ns3="http://www.dccinterface.co.uk/ResponseAndAlert">
<sr:Header>
<sr:ResponseID>00-DB-12-34-56-78-90-01:90-B3-D5-1F-30-01-00-00:1</sr:ResponseID>
<sr:ResponseCode>I0</sr:ResponseCode>
<sr:ResponseDateTime>2026-05-01T12:00:00.00Z</sr:ResponseDateTime>
</sr:Header>
<sr:Body>
<sr:DeviceAlertMessage>
<sr:AlertCode>8F1D</sr:AlertCode>
<sr:GBCSPayload>3wkDAAAAAAAAAAEIANsSNFZ4kAEIkLPVHzABAAAAAhAAGQ8gAAABAAICEo8dCQwH6gUB/wwAAACAAABAH7q5+2wPq3EtFVCStp2lgpRWsYFyKQgOh6JgiNpze16sTRL0B1xMMAvL/gnnBPGAFrPVKukkdtbD467M7LyNpQ==</sr:GBCSPayload>
</sr:DeviceAlertMessage>
</sr:Body>
</sr:Response>
The DCC User runs the received DUIS Response through the Parse tool, which decodes the GBCS payload and produces an ra:GBCSResponse (MMC) document containing the structured alert data.
Body path: ra:GBCSResponse/ra:Body/ra:DeviceAlertMessage/ra:DeviceAlertContent
Header fields
| Field | Type | Mandatory | Description |
|---|---|---|---|
BusinessOriginatorID | ra:EUI / identifier | Yes | Entity identifier of the message originator. |
BusinessTargetID | ra:EUI / identifier | Yes | Entity identifier of the message target. |
OriginatorCounter | xs:nonNegativeInteger | Yes | Originator counter in the response/alert header. |
SupplementaryRemotePartyID | identifier | Conditional | Supplementary party identifier; only present for alert families whose header table permits it. |
SupplementaryRemotePartyCounter | xs:nonNegativeInteger | Conditional | Supplementary party counter; only present for alert families whose header table permits it. |
SupplementaryOriginatorCounter | xs:nonNegativeInteger | Conditional | Only present where the specific header table permits it. |
Timestamp | xs:dateTime | Conditional | Only present where the specific header table permits it. |
GBCSHexadecimalMessageCode | xs:hexBinary | Yes | GBCS/MMC message code used to identify the alert use case. |
ra:DeviceAlertContent fields
| Field | Type | Mandatory | Description |
|---|---|---|---|
GBCSHexAlertCode | xs:hexBinary | Yes | Device Alert code as parsed from the GBCS payload. |
AlertDescription | xs:string (maxLength = 250) | Yes | Human-readable alert description. |
Timestamp | xs:dateTime | Yes | Device Alert timestamp as sent by the Device, in UTC time. |
Payload | choice | Conditional | Optional payload element present for the alert families in section 15.4. |
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ra:GBCSResponse xmlns:ra="http://www.dccinterface.co.uk/ResponseAndAlert" xmlns:sr="http://www.dccinterface.co.uk/ServiceUserGateway" schemaVersion="5.4">
<ra:Header>
<ra:BusinessOriginatorID>00-DB-12-34-56-78-90-01</ra:BusinessOriginatorID>
<ra:BusinessTargetID>90-B3-D5-1F-30-01-00-00</ra:BusinessTargetID>
<ra:OriginatorCounter>1</ra:OriginatorCounter>
<ra:GBCSHexadecimalMessageCode>1000</ra:GBCSHexadecimalMessageCode>
</ra:Header>
<ra:Body>
<ra:DeviceAlertMessage>
<ra:DeviceAlertContent>
<ra:GBCSHexAlertCode>8F1D</ra:GBCSHexAlertCode>
<ra:AlertDescription>GSME Power Supply Loss</ra:AlertDescription>
<ra:Timestamp>2026-05-01T12:00:00.00Z</ra:Timestamp>
</ra:DeviceAlertContent>
</ra:DeviceAlertMessage>
</ra:Body>
</ra:GBCSResponse>