Chapter 1. Introduction
OPTION SLOT ARRANGEMENT
As viewed from the rear of the TSU 600, the slots are numbered as shown in Figure
Slot 1
Slot 1 is used as the source of DTE timing when the DTE timing mode is selected. If DTE timing is de- sired, the DTE interface port sourcing the timing must be connected to Slot 1. This slot will accept all other interface types except Secondary Network interface option modules, including
Slot 2
Slot 2 is used for the Dial Backup module if a DBU is installed. This slot accepts all other interface types except Secondary Network interface option modules, including
Slots 3-5
Slots
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