
Strata CTX670 Installation
3-47
Strata CTX I&M September 2002
The fibre connection must conform to both the Optical Budget and Fibre Length specifications. It is
possible to have a fibre connection longer than 3 km (1.86 miles) with less than 9 dB of loss; however,
the CTX670 Remote Expansion Cabinet is sensitive to signal delay and cannot be guaranteed to
operate at distances greater than 3 km (1.86 miles).
Status Indicators
The RRCU1A card set provides two status indicators: a set of LEDs on the ROMS1A card and an
RS232C Monitor Port on the RRCU1A. Status indications are provided according to
and
. Binary Code Output is generated upon change of a reported condition.
Table 3-9
RS-232C Binary Code Output
BIT
Label
Function
Normal
Condition
D0
SD
1: Optical signal not detected
0: Optical signal detected
0
D1
RDER
1: Code rule violation detected in received data
0: Code rule violation not detected in received data
0
D2
SYCF
1: Frame synchronisation of received data not established
0: Frame synchronisation of received data established
0
D3
SYCS
1: System synchronisation between cabinets not established
0: System synchronisation between cabinets established
0
D4
RST
1: Reset signal from CTU detected
0: Reset signal from CTU not detected
0
D5
Not Used
0
D6
Not Used
1
D7
Not Used
0
Table 3-10
LED Status Indications
LED
Function
Normal
Condition
PWR
Blinking: Power is supplied
Off: Power is not supplied
Blinking
SD
On: Optical signal not detected
Off: Optical signal detected
Off
RDER
On: Code rule violation detected in received data
Off: Code rule violation not detected in received data
Off
SYCF
On: Frame synchronisation of received data not established
Off: Frame synchronisation of received data established
Off
SYCS
On: System synchronisation between cabinets not established
Off: System synchronisation between cabinets established
Off
RST
On: Reset signal from CTU detected
Off: Reset signal from CTU not detected
Off
Summary of Contents for Strara CTX Series
Page 10: ...Contents viii Strata CTX I M September 2002 ...
Page 14: ...Introduction xii Strata CTX I M September 2002 ...
Page 52: ...Strata CTX Configuration 1 38 Strata CTX I M September 2002 ...
Page 176: ...ISDN Interfaces 5 28 Strata CTX I M September 2002 ...
Page 278: ...Peripheral Installation 8 32 Strata CTX I M September 2002 ...