A-2
Cisco ONS 15310-MA SDH Reference Manual, Release 9.1 and Release 9.2
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Appendix A Specifications
Cisco ONS 15310-MA SDH Shelf Specifications
A.1.2 UDC Interface
The ONS 15310-MA SDH 64-kbps user data channel (UDC) digital interface has the following
specifications:
• The 64- kbps digital interface provides a digital input and output.
• Any F1 byte that is accessible on the system is interfaced at the UDC connector.
• The UDC provides a simplex interface. Protection for UDC overhead channel(s) follows interface
line protection for traffic.
• The UDC can be enabled or disabled through the management interfaces. The default state is
disabled.
• The physical interface is defined in ITU-T G.703 as a 120-ohm, twisted pair connection. The jitter
specification is defined in ITU-T G.823.
• The UDC supports a serial port interface adaptation function to overhead bytes F1. This is an
EIA/TIA-232 interface capable of 9.6-, 19.2-, 38.4-, and 56-kbps operation. The rate is selectable
through the management interface. The default is 56 kbps with no parity and 1 stop bit.
• Connector J3: UDC
A.1.3 Cisco Transport Controller LAN Interface
The ONS 15310-MA SDH CTC LAN interface has the following specifications:
• 10/100BaseT
• 15310E-CTX-K9 access: RJ-45 connector
• Connector J3: LAN port
A.1.4 TL1 Craft Interface
The ONS 15310-MA SDH TL1 craft interface has the following specifications:
• Speed: 9600 baud, no parity, 1 stop bit
• 15310E-CTX-K9: EIA/TIA-232 with RJ-45 type connector
• Connector J2: Craft port
A.1.5 Configurations
The ONS 15310-MA SDH supports the following configurations:
• Two-fiber path protection
• 1+1 protection
• Extended SNCP
• Add/drop multiplexer (ADM)
• Point-to-point (PPP) terminal mode
