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Cisco Systems, Inc.

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Speciﬁcations for the Gateway Module

Tables 8 and 9 provides speciﬁcations for the gateway module.

Table 8

Gateway Module Speciﬁcations

LAN Interface

• 100BASE-T (10/100), RJ-45

WAN Interfaces

• Conﬁgurable dual PRI (TE or NT) interface with RJ-48 connector

• T1 mode—23B+D: clock rate of 1.544 Mbps, ESF or D4 framing, binary 8-zero substitution

(B8ZS) or alternate-mark-inversion (AMI) encoding, line impedance 100 ohms

• E1 mode—30B+D: clock rate of 2.048 Mbps, G.704 with cyclic-redundancy-check-4 (CRC4)

framing, HDB3 or AMI encoding, line impedance 120 ohms

Serial Ports

• EIA-232, DB-9

Protocols

• H.323, H.320, T.120

ISDN Protocols

• AT&T 5ESS

• Northern Telecom DMS 100

• National ISDN-1 (NI-1)

• Euro-ISDN

Video Coding

• H.261, H.263, QCIF/CIF

Audio Coding

• G.711, G.722, G.723, G.728

• Optional transcoding between G.711 (ISDN) and G.723 (IP) or G.728 (ISDN) and G.711

(IP)—20 channels

Data Collaboration

• Supports T.120 data collaboration; rates up to 64 kbps

Panel LEDs

• LAN: Link present, link speed 100 Mbps

• GK: Registered with gatekeeper

• Alarm

• PSTN: Carrier detect, activity

Module

Dimensions

Main gateway module:

• Width: 9.187 in. (23.35 cm)

• Depth: 6.3 in. (16 cm)

• Weight: 1.12 lb (0.506 kg)

Rear transition module—input/output (I/O) interface for PSTN:

• Width: 9.187 in. (23.35 cm)

• Depth: 3.15 in. (8 cm)

• Weight: 2.55 lb (1.156 kg)

Module Types

Available

A single module type supports both system (top, slot 1) and add-on (slots 2-4) positions

in the Cisco IP/VC 3544 chassis.

Software

Upgrades

Remote software upgrade by administrator using software utility

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