---
oid: "1.3.6.1.4.1.1206.4.18.21.13.1.3"
short-description: "rsuSignalStatusBlock OBJECT-TYPE"
last-modified: "2026-09-29"
parent-oid: "1.3.6.1.4.1.1206.4.18.21.13.1"
---

## OID: `1.3.6.1.4.1.1206.4.18.21.13.1.3`

```asn1
{iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 1206 transportation(4) 18 21 13 1 3}
```

### Description

```asn1
rsuSignalStatusBlock OBJECT-TYPE
SYNTAX OerString
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"An OER encoded string of the mandatory data required from an ASC to support a SPaT message as defined below.
This object is used for uploading SPaT data from the ASC in a bandwidth efficient manner.
rsuSignalStatus ::= SEQUENCE {
rsuAscCurrentTick.0, -- Bytes 1 & 2
rsuSpatStatus.0 -- 2 BYTES
rsuSpatEnabledLanesCount.0 -- 1 BYTE
rsuSpatEnabledLanesStatus.0 -- n BYTES
rsuSignalGroupEntryCount.0 -- 1 BYTE
rsuSignalData2 SEQUENCE OF RsuSignalStatusData2 OPTIONAL}
RsuSignalStatusData2 ::= SEQUENCE {
rsuSignalGroupEntryNumber.y -- 1 BYTE
rsuSignalState2.y.x -- 1 BYTE
rsuSignalStateMinEndTick2.y.x -- 2 BYTES
rsuSignalStateMaxEndTick2.y.x -- 2 BYTES
rsuSignalStateNextTick2.y.x -- 2 BYTES
rsuSignalStateStartTick.y.x} -- 2 BYTES
where:
n = rsuSpatEnabledLanesCount. This is the number of octets in the OCTET STRING of rsuSpatEnabledLanesStatus
rsuSignalGroupEntryCount is a count of the number of rsuSignalGroupEntryNumber included in this object
y is the rsuSignalGroupEntryNumber in the rsuSignalStatusTable
x is the movementEventNumber for the rsuSignalStatusTable. Only a value of 1 (current interval) and 2 (next interval) are used.
It is necessary that the rsuSignalGroupIntersection and rsuSignalGroupID objects in the rsuSignalStatusTable be populated before the rsuSignalStatusBlock be used.
Although this object theoretically allows up to 255 rsuSignalGroupEntryNumbers, check that the number does not exceed the Maximum Transmission Unit (MTU) of the lower layers used."
```

**Classification:** MIB object for network management

### Child OIDs

No child OID

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