Installation guide

Installation

890USE17100 September 2003

Keying Considerations

Overview Along with the inherent keying designed into Advantys STB products and the wise

use of labels, you have the option of using keying pins to assure correct installation

of modules into their assigned bases, and connectors into their assigned

receptacles. Make your keying scheme prior to attaching your I/O bases to the

island’s DIN rail.

In this manual we recommend a keying scheme for base to module connections

only. Keying schemes for connectors are similar. Keys for modules must be ordered

separately (see the Keying Kit Table that follows). PDM Connectors come with a set

of their own keys.

Keying Kit Table Keying pin kits are available for the I/O to base connection, the field wire connection

(for sensor or actuator connections), the 24 VDC connection to the NIM, and the

power connection on the PDM.

Here is a table matching your keying needs with the correct keying kits:

Note: If your scheme includes keying the module to base connections, remove any

break-off pins from the bases before installing them on the DIN rail.

If you want to ... use a key from an ... key

quantity

key the I/O module to a base

connection

STB XMP 7700 module keying pin kit 60

key the field wire connection on the

front of an I/O module

STB XMP 7800 I/O connector keying pin kit 96

key the 24 VDC connection on the

NIM

STB XMP 7800 kit 96

key the PDM power connection STB XMP 7800 kit and an

STB XMP 7810 PDM connector keying kit