Commander Installation Guide
2.4.2500-02 SERIES TALKBACK CONTROLLER CARD There are currently two versions of the Talkback Controller: -.
• 500-02-11, which has on-board Flash Ram fitted at all times
• 500-02-12, which updates the 500-02-11 and provides improved serial communication.
They are fitted to the 500-08 (above). Initially, only fit the lower 500-02 Talkback Controller. The upper card is used for fault tolerant (redundant) operation if this option has been ordered.
The diagram below shows component layout of the 500-02-11 and -12.
Flash Re- program socket
Flash boot selector switch
The following key points should be noted:
•The flash bank selector control knob located on the front of the 500-08 series changeover card is inoperative with the 500-02-1x Talkback Controller. The PCB mounted rotary switch located on the front edge of the module itself selects the boot flash bank.
•In fault tolerant (redundant controller) systems fitted with the 500-02-1x Talkback Controller, main and standby controllers in Frame 1 must be selected to the same boot flash bank (i.e. position 1,2,3 or 4 on the front rotary switch).
•In multi-frame systems, in frames other than Frame 1, the flash bank selector switch should be set to position 6.
•Setting the flash bank selector switch to position 5 on Frame 1 causes the system to start without loading a configuration.
•If 500-01-10 TDM controllers are fitted, they "notify" their frame position to the Talkback Controllers. Thus, for a multi-frame system, the Flash Bank Selector switch setting in frames other than Frame 1 is irrelevant.
•The operation of the LEDs on the 500-02 series Talkback Controller is described in the Commander Technical Manual.
Page 12 of 81 | Issue 9 | Trilogy Communications Limited |
