Loop Telecom Loop-O9500R - Page 20

Loop-O9500 SDH/SONET IMAP
SDH/SONET-MSTP
20
OCU/DP Interface
Ports
8 Ports for each card
Line Status Indicator
Per Port 1 dual color LED; Red for LOS, Green for SYNC
Network Connector
RJ48S
Electrical network connection
Tip/Ring and Tip1/Ring1
Transmit Source Impedance
135 Ohms +/- 20%
Receive Input Impedance
135 Ohms +/- 20%
Receiver Sensitivity/ Dynamic Range
0 to 43 dB loop loss at 72K & 56K
0 to 34 all other rates Automatic line equalization
Pulse Amplitude
+/- 1.5 V (+/- 10%) peak, all rates except 9.6k
+/- 0.75 V (+/- 10%) peak at 9.6k
Bipolar Return to zero, 50% duty cycle
Sealing Current
Typically 16 mA DC
Operating Modes
4-wire DDS
Switched 56 support is optional.
Circuit Rates
SYNC: 2.4, 4.8, 9.6, 19.2, 56, 72kbps (64k) clear channel
Conforms with AT&T Pub 41458
Encoding and decoding rules
Use bipolar violation to indicate control information: Idle, out of service,
Zero substitution using unframed loops
Maintenance control
Fault and Performance
DSU Non-latching loop-back code (for 2.4, 4.8, 9.6, 19.2, 56k circuit
rate)
DSU Latching loop-back (TIP, LSC, LBE, FEV) code (for 72k circuit
rate)
Machine maintenance OCU/DP card operation:
Payload loopback
OCU loopback
Local loopback
Bi-directional loopback
V.54 remote loopback code
Custom defined remote loopback code
BERT test support all ones, all zeros, 2047, 511, 63 pattern.
LOS, OOS, ES, SES and UAS alarm.
Current, last 96 registry and 7 days performance storage.
Environment
Operating: 0-50°C
Storage: -25-75°C
Humidity: Up to 90% RH non-condensing
Specification Standard
ANSI T1.410; AT&T Pub 62319, AT&T Pub 62310, ITU-T V.54