6WUDWD&7;, 0
i
Contents
Chapter 1 – CTX28 Installation
Step 1: Mount the Cabinet on the Wall .........................................................................................1-6
PCB Installation ............................................................................................................................1-8
Step 2: Set Jumpers on the GMAU (Motherboard) ....................................................................1-10
Step 3: Install the GVMU Voice Mail PCB (optional) ..............................................................1-12
Voice Mail and Telephone LCD Prompts ..................................................................................1-13
Step 4: Install the GCTU (Processor) .........................................................................................1-17
Step 5: Install the GCDU (DKT and Loop Start Interface) ........................................................1-19
Step 6: Install the GSTU1A ........................................................................................................1-20
Step 7: Install the GETS1A ........................................................................................................1-20
Step 8: Install the BSIS1A (optional) .........................................................................................1-21
Step 9: Install the HPFB-6 (Reserve Power Battery/Charger) ...................................................1-21
Step 10: Install Wiring ................................................................................................................1-22
Digital Telephone Connection ..........................................................................................................1-24
Loop Limits .......................................................................................................................................1-25
CTX28 Secondary Protection ...........................................................................................................1-26
MDF Wiring ......................................................................................................................................1-27
GVMU Administration PC Connections ..........................................................................................1-28
Station Loop Lengths ........................................................................................................................1-29
CTX28 Default Initialized Data ........................................................................................................1-30