• SPA-1XCHOC48/DS3 is the Cisco ASR 9000 and XR 12000 Series Shared Port Adapter. This Cisco 1-Port Channelized OC-48/STM-16 SPA is available on high-end Cisco routing platforms offering the benefits of network scalability with lower initial costs and ease of upgrades. The Cisco SPA/SIP portfolio continues the Cisco focus on investment protection along with consistent feature support, broad interface availability, and the latest technology. The Cisco SPA/SIP portfolio allows different interfaces (Packet over SONET/SDH [POS], ATM, Ethernet, etc.) to be deployed on the same interface processor.


Cisco ASR 9000 Series Aggregation Services Routers

Cisco ASR 9000 Series Aggregation Services Routers

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SKU: CISCO SPA-1XCHOC48/DS3 Categories: ,


Sub Brands



Type SPA-1XCHOC48/DS3 Cisco ASR 9000 Series & XR 12000 Shared Port Adapter
Product compatibility Cisco XR 12000 Series Routers

Cisco ASR 9000 Series Router

Port density per SPA 1-port Channelized OC-48/STM-16
Physical interface (Channelized OC-48) OC-48c/STM-16 Small Form-Factor Pluggable (SFP) optics module (refer to optical parameters in Table 2)

Visual status indicators (LEDs):

• SPA status LED

• Per-port LEDs

• Carrier and alarm

• Active and loopback

Protocols • IETF RFC 1490, Frame Relay Encapsulation

• RFC 1662, Point-to-Point Protocol (PPP) in High-Level Data Link Control (HDLC)-like framing

• Cisco HDLC

• PPP, HDLC, and Frame Relay User Network Interface (UNI) encapsulations

Features and functions DS3

• Full- and half-duplex connectivity at DS-3 rate (44.736 MHz)

• Scrambling and subrate support of major data-service-unit (DSU) vendors

• C-bit or M23 framing in DS-3 mode

• G.751 or G.832 in E3 mode

• Support for 16- and 32-bit cyclic redundancy check (CRC) (16-bit default)

• 24-hour history maintained for error statistics and failure counts

• DS-3 alarm and event detection (once-per-second polling)

• Alarm indication signal (AIS)

• Out of frame (OOF)

• Far-end receive failure (FERF)

SONET errors, alarms, and performance monitoring Synchronization

• Local (internal) or loop timed (recovered from network)

• Pointer activity monitoring

Local (diagnostic) and line (network) loopback

Payload mapping

• POS with 1 + X^43 self-synchronous scrambler

SONET/SDH compliance

• Telcordia (Bellcore) GR-253-CORE (as applicable)

• ANSI T1.105, T1.231

• ITU-T G.707, G.957, G.825 (as applicable)

Supported SONET/SDH alarm and signal events

• Signal failure bit error rate (SF-ber)

• Signal degrade bit error rate (SD-ber)

• Signal label payload construction (C2)

• Path trace byte (J1)

• Section

• Loss of signal (LoS)

• Loss of frame (LoF)

• Error counts for B1

• Threshold crossing alarms (TCA) for B1

• Line

• Line alarm indication signal (LAIS)

• Line remote defect indication (LRDI)

• Line remote error indication (LREI)

• Error counts for B2

• TCA for B2

• Path

• Path alarm indication signal (PAIS)

• Path remote defect indication (PRDI)

• Path remote error indication (PREI)

• Error counts for B3

• TCA for B3

• Loss of pointer (LoP)

• Positive stuffing event (PSE)

Negative stuffing event (NSE)

Path unequipped indication signal (PUNEQ)

Path payload mismatch indication signal (PPLM)

Network management • SONET-MIB (RFC 3592)



• DS-3/E3-MIB (RFC 3896)

• Simple Network Management Protocol (SNMP)

Reliability and availability • Online insertion and removal (OIR)

• Field-replaceable SFP optical modules

• 1+1 SONET Automatic Protection Switching (APS) and SDH Linear Multiplexer Section Protection (MSP) protocols

• Single SPA software reset

Physical specifications • Weight: 1.27 lb (0.57 kg)

• Height: 1.56 in. (3.96 cm) (double height)

• Width: 6.75 in. (17.15 cm)

• Depth: 7.28 in. (18.49 cm)

Power • 1-port Channelized OC-48/STM-16 = 44W (with optics)
Environmental specifications • Operating temperature: 41 to 104°F (5 to 40°C)

• Storage temperature: -38 to 150°F (-40 to 70°C)

• Operating humidity: 5 to 85% relative humidity

• Storage humidity: 5 to 95% relative humidity

Compliance and agency approvals Safety

• UL/CSA 60950-1

• IEC/EN 60950-1

• AS/NZS 60950.1

• EN60825/IEC60825 laser safety

• 21CFR1040 -FDA Code of Federal Regulations (USA) laser safety


• FCC Part 15 (CFR 47)

• ICES 003

• CISPR 22



• EN55022

• EN55024

• EN300 386

• EN50082-1

• EN61000-6-1

Network Equipment Building Standards (NEBS)

This product is designed to meet the following requirements (official qualification may be in progress):

• SR-3580 – NEBS: Criteria levels (Level 3 compliant)

• GR-63-CORE – NEBS: Physical Protection

• GR-1089-CORE – NEBS: EMC and Safety


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