Contents
vi
GUPS 2400A
–107 Operation Manual
3.9
RS-232 Data Communications Port ................................................................ 3-7
3.9.1
Hardware Interface ............................................................................. 3-7
3.9.2
Software Interface .............................................................................. 3-7
3.9.3
RS-232 Protocol ................................................................................. 3-8
3.9.4
Test Data Request Commands ........................................................... 3-8
3.9.5
Elgar Terminal Interface (ETI) Data Request Commands ................... 3-10
3.9.6
Status Words .................................................................................... 3-11
3.9.7
AC Line Loss Signal ......................................................................... 3-16
SECTION 4 MAINTENANCE ............................................................... 4-1
4.1
Introduction .................................................................................................... 4-1
4.2
Service Information ........................................................................................ 4-1
4.3
Spare and Repair Parts .................................................................................. 4-1
4.4
Periodic Maintenance ..................................................................................... 4-1
4.5
Troubleshooting .............................................................................................. 4-2
LIST OF FIGURES
Figure 2
–1. GUPS 2400A-107 (Front View) ................................................................ 2-3
Figure 2
–2. GUPS 2400A-107 (Rear View) ................................................................. 2-4
Figure 2
–3. GUPS 2400A-107 Dimensions (Top, Side, and Front Views) ................... 2-5
Figure 3
–1. GUPS 2400A-107 Control and Indicator Panel ....................................... 3-2
LIST OF TABLES
Table 2
–1. GUPS 2400A-107 Input/Output Connectors .............................................. 2-2
Table 2
–2. Recommended Wire Gauge Selection Guide ............................................ 2-6
Table 3
–1. GUPS 2400A-107 Connector Pin Assignments ......................................... 3-4
Table 3
–2. Battery Storage Times............................................................................... 3-6
Table 3
–3. RS-232 Connector Pin-Out........................................................................ 3-7
Table 3
–4. RS-232 Communications Port Protocol ..................................................... 3-8
Table 3
–5. Status Word 1 Data Format .................................................................... 3-11
Table 3
–6. Status Word 2 Data Format .................................................................... 3-14
Table 4
–1. GUPS 2400A-107 Troubleshooting Guide ................................................. 4-2
