Manual

Innotech Device Network Cabling Installation Instructions

Chapter 3 – Sub Network Devices

Page 33

3-2.1 VAVMax (VM01) and MicroMAX (UM01)

The VAVMax and MicroMAX have a 5 way connector where the terminals are made up of P+ P- C+ C-

SHLD. This is due to the fact that the Sub System Network Commissioning Tool (CT01) is powered by

the P+ and P- terminals. These terminals have dierent pin spacing to the primary network terminals

and while they look similar, they are not, and can’t be interchanged.

3-2.2 MiniMAX (MM02)

These MiniMAX controllers have the REM style of comms connector.

When used in conjunction with VAVMax or MicroMAX controllers, care should be taken to ensure only

the S1 terminal is used to maintain the continuity of the screen.

3-3 IR11 Single Channel Repeater

For information regarding the conditions when a repeater should be added to a Sub Network please refer to

Chapter 4 of this manual.

NOTE

Hazardous Voltage between Earth-Connections

When the Digital Controllers are supplied and earthed from two dierent switchboards, a hazardous situation

can be created. One earth connection is at the local switchboard and the second earth connection is by way of the

screen of the Comms cable. In the event of a fault, there could be full supply voltage dierence between the two

earth connections. Always measure the voltage between Port 1 & 2 screens before handling. Use appropriate safety

precautions.

CAUTION

The IR11 single channel repeater has the REM style connectors.

When used in conjunction with VAVMax or MicroMAX controllers, care should be taken to ensure only

the S1 terminal is used to maintain the continuity of the screen.

3-4 Network with VAVMax, MiniMAX and MicroMAX devices

The figure above indicates that the screen is to be continuous for the entire network run. Devices with

the S1 and S2 screen terminals use only the S1 terminal.



Figure 3-6: Sub System Network Connections

IR11

UM01

P+ + -P- S

MM02

VM01

P+ + -P- S