impro HRR901 Installation Manual page 5

Four Channel Operation
When using the Impro Quad Receiver and a single Impro (iTRT) Intelligent Twin
Reader Terminal (XRT910-0-0-GB-XX, XRT920-0-0-GB-XX, IPS920-0-0-GB-XX or
IPS921-0-0-GB-XX), only two Push-buttons on the Impro Quad Transmitter (TRK900-1-
1-GB) are available for use.
To use all four of the Quad Transmitter's Push-buttons, connect two Impro (iTRT)
Intelligent Twin Reader Terminals (XRT910-0-0-GB-XX, XRT920-0-0-GB-XX, IPS920-
0-0-GB-XX or IPS921-0-0-GB-XX), to the Quad Receiver, see Figure 3.
Figure 3: Using Four Channels
Impro FlexiScan Controller
When using the Quad Receiver with the FlexiScan Controller (HCM991-0-0-GB-XX),
EACH of the four Quad Transmitter buttons (when "added" to the Tag Database) are
mapped to each the FlexiScan's four relays respectively. The "Legacy link" must be
REMOVED from the Quad Receiver PCB. See Figure 9 for wiring details
Impro UniScan Controller
When using the Quad Receiver with the UniScan Controller (HCM990-0-0-GB-XX), all
four Quad Transmitter buttons will trigger the UniScan's single relay ONLY with the
Quad Transmitter buttons that have been "added" or "enrolled". The "Legacy link" must
be REMOVED from the Quad Receiver PCB when connected to a UniScan Controller.
See Figure 10 for wiring details.
HRR300-0-0-GB-01 April 2013 Page 5