Service Manual

GSM-204-020
31st Oct 01
I–6
Service Manual: Horizon macro outdoor
CONTROLLED INTRODUCTION
68P02902W12-A
FMUX
connecting extension cabinets, Tech. 6–23
functional diagram, Tech. 6–24
internal to MCUF, Tech. 6–14
overview, Tech. 6–23
replacement, Maint. 3–40
FMUX fibre optic connections, MCUF, Tech. 6–8
Frequency band characteristics, Tech. 1–14
Front panel, auxiliary equipment housing,
replacement procedure, Maint. 4–9
FRU
blanking plate, Maint. 3–37
digital boards, Maint. 3–40
feedthrough plate, Maint. 3–37
HCU, Maint. 3–37
SURF, Maint. 3–31
FRUs, assumed procedures, Maint. 2–5
Fuses, CAB front panel, Tech. 4–17
G
Glossary of terms, Parts 1–8
GPS, pin connections, Inst. 3–62
H
Harness, cage, replacement, Maint. 3–47
HCU, replacement, Maint. 3–37
HCU plate, Tech. 5–36
Heat sensor, replacement procedure, Maint.
3–13
Heat sensors, description, Tech. 3–1
Heater mat, auxiliary equipment housing, Tech.
7–3
replacement procedure, Maint. 4–11
Hybrid Combining Unit, Tx block screws, Tech.
5–31
I
ICS connector, pinouts, Inst. 3–67
Interface panel
connector pinouts, Inst. 3–62
diagram, Inst. 3–61
replacement, Maint. 3–47
Interface panel cabling, Inst. 3–61
Interfaces, MCUF front panel, Tech. 6–8
Internal battery
removal and replacement, Maint. 3–26
removing the tray, Maint. 3–25
Internal battery
CAB selector switch, Tech. 4–23
capacity test, Tech. 4–22
K
Krone block, replacement procedure, Maint.
3–39
L
LAPD encoding, Tech. 6–20
LED indicators, transceiver, Tech. 5–9
Lid
auxiliary equipment housing
fitting a new lid, Maint. 4–7
removal procedure, Maint. 4–6
environmental seal replacement, Maint. 3–7
main cabinet, detail diagram, Tech. 2–20
opening and closing, Inst. 3–8, Maint. 2–3
replacement procedure, Maint. 3–6
Lightning protection, E1/T1 lines, Inst. 3–16
Loopback test
availability software, Tech. 5–7
mode description, Tech. 5–7
Loopback test function, within SURF, Tech.
5–26, Tech. 5–29
Low voltage disconnect, Tech. 4–19
M
M–Cell2, Use of MCUF as MCU, Tech. 6–5