Interface Pinouts

V.11/X.21 Link Pinouts

The connector shown here and pinouts described here correspond to the connector labeled “V.11/x.21” on the back of the unit.

 

 

8

 

1

 

 

 

 

DB15 Female DTE

 

 

 

 

 

 

 

15

9

 

 

 

 

 

 

 

 

 

 

 

X.21

 

 

 

Direction

Contact

Circuits

Circuit

 

 

To

From

Number

Reference

Name

 

 

DCE

 

DCE

1

 

Protective Ground

 

 

NA

2

T (A)

Transmitted Data (A)

 

 

X

 

 

3

C (A)

Control (A)

 

 

X

 

 

4

R (A)

Received Data (A)

 

 

 

 

X

5

I (A)

Indication (A)

 

 

 

 

X

6

S (A)

Signal Element Timing (A)

 

 

 

X

7

 

----------

 

 

 

 

 

8

Ground

Signal Ground

 

 

NA

9

T (B)

Transmitted Data (B)

 

 

X

 

 

10

C (B)

Control (B)

 

 

X

 

 

11

R (B)

Received Data (B)

 

 

 

 

X

12

I (B)

Indication (B)

 

 

 

 

X

13

S (B)

Signal Element Timing (B)

 

 

 

X

14

 

----------

 

 

 

 

 

15

 

----------

 

 

 

 

 

Figure D-6 V.11/x.21 Link Pinouts

The connecting cable must be a shielded cable.

Circuits which are paired (contain an (A) and (B) reference) should be connected to twisted pairs within the connecting cable.

NOTE For U.K. Approval:

The connecting cable may be any length between 0 and 5M. Each end must be terminated in a male 15 pin X.21 connector as defined in ISO-4903 1989, but one end of the cable must have UNC-4-40 screws and the other end must have M3 screws.

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Black Box LR5200A-R2, LR5100A-T manual 11/X.21 Link Pinouts, DB15 Female DTE

LR5200A-R2, LR5100A-T specifications

The Black Box LR5100A-T and LR5200A-R2 are advanced network media converters designed to facilitate seamless data transmission across various media types. These devices are particularly valuable for organizations seeking high-performance solutions for extending network communications beyond traditional limits.

The LR5100A-T is an Ethernet media converter that operates over twisted pair cabling, efficiently converting 10/100/1000 Mbps Ethernet signals into fiber optic signals. This capability allows businesses to harness the long-distance advantages of fiber optics while maintaining compatibility with existing Ethernet infrastructure. With a broad range of supported distances, users can effectively communicate over distances up to 100 kilometers, depending on the type of fiber optic cable used and the transmission rate.

In contrast, the LR5200A-R2 emphasizes compatibility with a wider range of fiber types and supports both multimode and single-mode fiber connections. It also provides auto-negotiation capabilities, which enable it to automatically detect and configure to the optimal speed of connected devices, streamlining setup and enhancing user experience.

One of the key features of both the LR5100A-T and LR5200A-R2 is their rugged design, making them suitable for deployment in harsh environments. They are engineered to withstand extreme temperatures and are resistant to vibration, ensuring reliability in challenging settings. Additionally, both models adhere to industry standards, ensuring interoperability with a diverse array of networking equipment.

Notably, these converters come equipped with LED indicators that allow for real-time monitoring of device status, simplifying network management and troubleshooting. This feature ensures that technicians are promptly alerted to any connectivity issues, significantly reducing downtime.

Powering options for both models include standard AC power supplies or Power over Ethernet (PoE), allowing for flexible deployment scenarios without the need for additional power outlets. This flexibility can be a crucial factor in environments where power availability may be limited.

With their blend of performance, durability, and advanced features, the Black Box LR5100A-T and LR5200A-R2 media converters represent a solid choice for organizations looking to future-proof their network infrastructure while ensuring high levels of connectivity and reliability. Whether extending existing networks or implementing new solutions, these devices provide the necessary tools for effective communication in today’s digital world.