Product Specifications

ROMA Connect Instance Specifications

The following table lists the ROMA Connect instance specifications in each edition.

**Table 1** ROMA Connect instance specifications
Instance Edition	Number of Systems Supported	Number of Connections Supported	Applicability
Basic	5 to 10	25	Small-sized enterprises
Professional	10 to 20	80	Small- and medium-sized enterprises
Enterprise	20 to 30	200	Medium- and large-sized enterprises
Platinum	More than 30	800	Large-sized enterprises

The number of connections and the number of systems are a reference that you can use to select a ROMA Connect instance edition. They do not limit the number of resources (such as data integration tasks, APIs, and message topics) in an instance and are not directly associated with the resource quota of the instance.

Number of systems: A system refers to a user's service system, and the number of systems refers to the number of service systems interconnecting with a ROMA Connect instance. You can set up multiple connections between a service system and a ROMA Connect instance.

Number of connections: A connection refers to an interaction between a service system and ROMA Connect. The number of connections varies depending on the functional module in ROMA Connect that you want to connect. The following table describes the mappings between the number of resources and the number of connections.

**Table 2** Mappings between the number of resources and the number of connections
Functional Module	Mapping
FDI	One data integration task occupies one connection.
APIC	10 hosting APIs (that do not use custom backends as backend services) occupy one connection. Two function APIs or data APIs occupy one connection.
MQS	Three topics occupy one connection.
LINK	1000 devices occupy one connection.

FDI Specifications

The following table lists the FDI specifications supported by a ROMA Connect instance.

**Table 3** FDI specifications
Instance Edition	Relational Database Collection Throughput (Mbit/s)	Message System Collection Throughput (Mbit/s)	Unstructured Storage Collection Throughput (Mbit/s)
Basic	0.5	4	2
Professional	1	5	3
Enterprise	1.5	7	4.5
Platinum	2	10	6

APIC Specifications

The following table lists the APIC specifications supported by a ROMA Connect instance.

**Table 4** APIC specifications
ROMA Connect instance specifications	API Access (TPS)	API Access (Authorization Relationship Per Minute)
Basic	4000	120,000 Note: One authorization relationship is counted regardless of whether an API is called by an authorized integration application one or more times within one minute.
Professional	6000
Enterprise	8000
Platinum	10,000

MQS Specifications

ROMA Connect is compatible with open-source Kafka 1.1.0 and 2.3.0. Kafka 2.3.0 is recommended. The following table lists the MQS specifications supported by a ROMA Connect instance. When selecting the specifications, reserve 30% of the bandwidth to ensure stable running of your applications.

**Table 5** MQS Specifications
Instance Edition	Bandwidth	TPS (High-Throughput)	TPS (Synchronous Replication)	Maximum Number of Partitions	Specifications
Basic	100 MB/s	100,000	60,000	300	Recommended for up to 3000 client connections, 60 consumer groups, and 70 MB/s service traffic.
Professional	300 MB/s	300,000	150,000	900	Recommended for up to 10,000 client connections, 300 consumer groups, and 210 MB/s service traffic.
Enterprise	600 MB/s	600,000	300,000	1800	Recommended for up to 20,000 client connections, 600 consumer groups, and 420 MB/s service traffic.
Platinum	1200 MB/s	1.2 million	400,000	1800	Recommended for up to 20,000 client connections, 600 consumer groups, and 840 MB/s service traffic.

LINK Specifications

ROMA Connect supports device access using MQTT 3.1 and MQTT 3.1.1. The following table lists the LINK specifications supported by an instance.

**Table 6** LINK specifications
Instance Edition	Upstream Message	Downstream Message
Basic	10,000 TPS for 20,000 online devices	1,000 TPS for 20,000 online devices
Professional	20,000 TPS for 40,000 online devices	1,500 TPS for 40,000 online devices
Enterprise	40,000 TPS for 100,000 online devices	2,000 TPS for 100,000 online devices
Platinum	100,000 TPS for 500,000 online devices	5,000 TPS for 500,000 online devices