Cisco 1004-CH - 1004 Enet/ISDN/Bri Rter Specifications download pdf (Page 10)

Cisco 2500 Series

Cisco Site Preparation Guide

3-10

External Connections for Fixed-Conﬁguration Models

This section contains the external connection requirements for the Cisco 2500 series. The interfaces

available for Cisco 2500 series products vary from model to model.

• Asynchronous serial console and auxiliary ports with RJ-45 connectors.

• Synchronous serial interface with a DB-60 connector. The synchronous serial interface supports

the following standards in DTE and DCE mode: EIA/TIA-232, EIA/TIA-449, V.35, and X.21.

The EIA-530 standard is supported in DTE only.

• Ethernet attachment unit interface (AUI) IEEE 802.3 with a DB-15 connector or 10BaseT with

an RJ-45 connector.

• Token Ring IEEE 802.5 interface with a DB-9 connector or RJ-45 connector.

• ISDN BRI interface with an RJ-45 connector.

• UTP hub ports with RJ-45 connectors.

• The Cisco 2500 series chassis can be mounted in a 19-inch or 24-inch rack, on a wall, or placed

on a desktop.

External Connections for Cisco 2524 and 2525 Modular Routers

Only two Cisco 2500 series models include removable WAN modules: the Cisco 2524 and the

Cisco 2525. The Cisco 2524 and Cisco 2525 routers provide LAN and WAN access in a modular

router platform. The Cisco 2524 router includes an Ethernet (AUI or 10BaseT) LAN connection, and

the Cisco 2525 router includes a Token Ring (STP or UTP) LAN connection. Both routers can

accommodate up to three WAN modules: two synchronous serial and one ISDN.

The ISDN WAN modules are keyed so that you cannot insert them into the synchronous serial WAN

slots. A blank slot cover is installed over unused slots to ensure proper air ﬂow inside the chassis.

The synchronous serial WAN modules include the following external connectors:

• 2-wire switched 56-kbps digital service unit/channel service unit (DSU/CSU) WAN module with

an RJ-11 connector.

• 4-wire 56/64-kbps DSU/CSU WAN module with an RJ-48S connector.

• Fractional T1/T1 DSU/CSU WAN module with an RJ-48C connector.

• 5-in-1 synchronous serial WAN module with a DB-60 serial connector. The ﬁve-in-one

synchronous serial interface supports the following signaling standards: EIA/TIA-232,

EIA/TIA-449, V.35, X.21, and EIA-530.

• The ISDN WAN modules include the following external connectors:

• ISDN BRI WAN module with an RJ-45 connector

• ISDN WAN module, with integrated NT1 device, with an RJ-45 connector

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Cisco 1004-CH - 1004 Enet/ISDN/Bri Rter Specifications Page 10