Introduction

Observe these guidelines when making cable connections between remote I/O devices on a Quantum EIO installation. (Remote I/O devices include local racks, remote I/O drops, or DRSs.)

A copper cable connection between 2 consecutive remote I/O devices cannot exceed 100 m. A fiber cable connection between 2 consecutive remote I/O devices cannot exceed 15 km (single mode) or 2.5 km (multi-mode).

Connections Between Devices

This figure shows the distances between remote I/O devices in Quantum EIO installations:

1 140CRP31200 remote I/O head module

2 140NOC78000 distributed I/O head module

3 140NOC78100 control head module

4 DRS (with copper and fiber ports): This DRS extends the distance between devices using fiber cable (up to 15 km).

5 distributed I/O sub-ring connected to the main ring via (4)

6 fiber cable portion of the main ring used to separate the DRSs beyond 15 km

7 copper cable (twisted pair) portion of the main ring

8 remote I/O drop

9 DRS (with copper ports only): This DRS extends the distance between devices.

10 control network

NOTE: It is required to use shielded twisted pair CAT5e (10/100 Mbps) cables, ideally ConneXium 490NTC•000•• cables.

Interlink

To support distributed I/O sub-rings in Quantum EIO installations, establish an interlink between an Ethernet communication module on the local rack and the 140CRP31200 remote I/O head module:

1 local rack, including a 140 NOC 780 00 distributed I/O head module that is interlinked with a 140CRP31200 remote I/O head module

2 DRS connected to the main ring and a distributed I/O sub-ring

3 distributed I/O sub-ring

NOTE: For the interlink connection, it is required to use shielded twisted pair CAT5e (10/100 Mbps) cables.