Status Indicators - Toshiba Strara CTX Series Installation And Maintenance Manual

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
10. Binary Code Output is generated upon change of a reported condition.
Table 3-9 RS-232C Binary Code Output
BIT Label
D0 SD 1: Optical signal not detected
0: Optical signal detected
D1 RDER 1: Code rule violation detected in received data
0: Code rule violation not detected in received data
D2 SYCF 1: Frame synchronisation of received data not established
0: Frame synchronisation of received data established
D3 SYCS 1: System synchronisation between cabinets not established
0: System synchronisation between cabinets established
D4 RST 1: Reset signal from CTU detected
0: Reset signal from CTU not detected
D5 Not Used
D6 Not Used
D7 Not Used
Table 3-10 LED Status Indications
LED
PWR Blinking: Power is supplied
Off: Power is not supplied
SD On: Optical signal not detected
Off: Optical signal detected
RDER On: Code rule violation detected in received data
Off: Code rule violation not detected in received data
SYCF On: Frame synchronisation of received data not established
Off: Frame synchronisation of received data established
SYCS On: System synchronisation between cabinets not established
Off: System synchronisation between cabinets established
RST On: Reset signal from CTU detected
Off: Reset signal from CTU not detected
Strata CTX I&M September 2002
Function
Function
Strata CTX670 Installation
Tables 3-9 and
Normal
Condition
0
0
0
0
0
0
1
0
Normal
Condition
Blinking
Off
Off
Off
Off
Off
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