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Cisco 1-Port 4-Wire 56-/64-kbps CSU/DSU WAN Interface Card

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The Cisco® 1-Port 4-Wire 56-/64-kbps CSU/DSU WAN Interface Card (HWIC-1DSU-56K4) performs the channel service unit/data service unit (CSU/DSU) functions for both digital data service (DDS) (dedicated) and 4-wire switched 56-kbps (56K) data networks. In addition, it provides an all-rate synchronous interface to any dedicated DDS point-to-point or multipoint network compatible with AT&T Publication 62310. The new card also supports 4-wire switched 56K data services such as AT&T's Accunet 56 or Sprint's VPN-56 plus many switched data services offered by local exchange carriers. Figure 1 shows the Cisco 1-Port 4-Wire 56-/64-kbps CSU/DSU WAN Interface Card (WIC).

Figure 1. Cisco 1-Port 4-Wire 56-/64-kbps CSU/DSU WIC

Note: The information presented in this document was derived from devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If you are working in a live network, please ensure that you understand the potential effect of any command before using it.

Features

The Cisco 1-Port 4-Wire 56-/64-kbps CSU/DSU WIC offers the following benefits:

• Implements the switched 56K and DDS (leased-line) operation

• Identical hardware feature set to the 4-wire 56-/64-kbps CSU/DSU

• Identical Cisco IOS® Software configuration

• Supports the DDS (leased-line) operation (AT&T Pub. 62310)

• Supports DDS loop rates 2.4, 4.8, 9.6, 19.2, 38.4, 56, and 64 kbps

• Supports the switched 56 operation at 56 kbps (AT&T Pub. 41458 and Sprint TS-0046)

• Provides receiver sensitivity of -45 db at all loop rates

• Uses the Self-Test Function (at power on and user initiated) and network line and data-terminal-equipment (DTE) loopbacks; user-initiated DTE, line, and remote V.54 loopbacks diagnostic functions

• Compliant with UL 1950, UL 1459, CSA 22.2-950, CSA 22.2-255, FCC part 15J Class A, and FCC part 68

Platform Support

Table 1 gives information about platform support for the Cisco 1-Port 4-Wire 56-/64-kbps CSU/DSU WIC.

Table 1. Platform Support

Platform

Cisco 1900 Series Integrated Services Routers (1905, 1921, and 1941)

Cisco 2900 Series Integrated Services Routers (2901, 2911, 2921, and 2951)

Carrier module

Not required

Not required

Cisco IOS Software support

Cisco IOS Software Release 15.01 and later

Cisco IOS Software Release 15.01 and later

Note: The Cisco IOS Software releases provided are typically the minimum version required to support the platform, module, or feature in question. Use the Software Advisor (registered customers only) to choose appropriate software for your network device; match software features to Cisco IOS Software and Cisco Catalyst® OS releases, compare Cisco IOS Software releases, or find out which software releases support your hardware.

Configuration

The Cisco 1-Port 4-Wire 56-/64-kbps CSU/DSU WIC uses service-module commands. Following is a sample configuration.

Note: There are no framing or linecode commands because the 56K card is not a T1 and does not relate to time slots. T1 lines have 24 time slots: 24 x 64 DS-0 ports = 1.544m.

Note: This card is strictly 56K and time slots are not relevant.

interface serial 0/0
service-module 56k clock rate 56
service-module 56k clock source internal
ip address 10.1.1.1 255.255.255.0
encapsulation ppp
no shut
To perform a loopback test, refer to Loopback Tests for T1/56K Lines.

Connector Pinout

The Cisco 1-Port 4-Wire 56-/64-kbps CSU/DSU WIC uses a standard straight-through RJ-45 cable to connect from the RJ-48S jack on the CSU/DSU to the wall jack (Table 2).

Table 2. Connector Pinout Details

RJ-48S Pin

Signal

1

Receive ring

2

Receive tip

7

Ring

8

Tip

LED Definitions

Table 3 defines the LEDs.

Table 3. LEDs

Label

Signal

Definition

DCD

Data carrier detect

Settings normal or on all the time

Normal/DDS: Illuminated when data characters are being received

Normal/SW56: Illuminated when a valid connection is established

RD

Receive data

Illuminates when receive data characters are being clocked from the DSU module into the router

TB

Transmit data

Illuminates when transmit data characters are being clocked from the router into the DSU module

LB

Loopback

Solid illumination any time a loopback is active

AL

Alarm

Illuminates any time an unmasked alarm condition exists

• Out of service/out of frame (OOS/OOF) from network
• No receive signal
• No sealing current
• No frame synchronization for 64K
• Attempting to rate adapt
• RT (DSU loopback); LL (CSU loopback); from telco
• Remote digital loopback (RDL) from remote DSU

Ordering Information

Table 4 lists ordering information for the Cisco 1-Port 4-Wire 56-/64-kbps CSU/DSU WIC.

Table 4. Ordering Information

Part Number

Description

HWIC-1DSU-56K4

One Port Four Wire 56/64 Kbps CSU/DSU WAN Interface Card