5.1.1.9. Usage guide
An example of a Python SPEAD implementation can be found in [RD8].

5.1.2. Presentation Layer

(OSI Layer 6). As defined for SPEAD in [AD3].

5.1.3. Session Layer

(OSI Layer 5). As defined for SPEAD in [AD3]

5.1.4. Transport Layer

(OSI Layer 4).The transport layer of this interface shall be compliant with UDP protocol (as described in IETF RFC 768), Multicast RFC 1112, RFC 5771 (administratively scoped addresses) (SDP_REQ_INT-34), as specified in [RD2]

5.1.5. Network Layer

(OSI Layer 3). The network layer shall be compliant with Internet Protocol (IP) Version 4 (as described in IETF RFC 791) (SDP_REQ_INT-34), as specified in [RD2]

5.1.6. Data Link Layer

Refer to [RD1] and [RD2]

5.1.7. Physical Layer

Refer to [RD1] and [RD2].

5.2. SDP – CSP Pulsar Search and Fast Transient/Single Pulse Data Interface: I.S1M.SDP_CSP.002

The data exchange between the SDP and the CSP for the pulsar search and Fast Transient/Single Pulse data interface is fully described in this section following [AD7] format. Pulsar search and Fast transient/single pulse data will share a common Data Transport and Communications protocol (See Par 5.2.3. to 5.2.7.) . The communication interface between the CSP and SDP will be bi-directional although the data flow will be uni-directional (from CSP to SDP).
The OCLD/SPOCLD are produced by the Non-Imaging Processor component of the CSP and sent to the SDP for follow-up verification and identification.