Cisco Systems 545 Serial manual Board LED Indicators, Push Buttons, Communication Interfaces

Chapter 5 Technical Specifications

Technical Specifications Table

Table 5-1	Cisco Unified Videoconferencing 3545 Chassis Technical Specifications (continued)
Board LED Indicators
Front panel		•	ETHERNET:
			•	Link
			•	Connection Speed
		•	GK Reg
		• CPU High (MCU only)
		•	CD (gateways only)
		•	ALARM
		•	ACT
		•	MC (EMP only)
Rear panel		•	PRI 1 or 2:
(Cisco Unified			•	ACT
Videoconferencing
			•	D-Ch
3545 PRI Gateway)
			•	ALRM
Rear panel		•	PORT 1 to 4:
(Cisco Unified			•	ACT
Videoconferencing
			•	ALARM
3545 Serial Gateway)
Push Buttons		•	RST (front panel)

Communication Interfaces

Front panel

Rear panel (Cisco Unified Videoconferencing 3545 PRI Gateway)

•Ethernet 10/100 Mbps auto-negotiate speed select

•Asynchronous serial port RS-232 connected via 9-pin D-type connector

•2 x ISDN E1/T1 PRI port:

•T1 mode

Channels: 23B + 1D

Clock rate: 1.544 Mbps

Framing: F4, F12, ESF no CRC, ESF, F72

Encoding: NRZ, AMI-B7, B8ZS

Line impedance: 100Ω

•E1 mode

Channels: 30B + 1D

Clock rate: 2.048 Mbps

Framing: Double framing, CRC4, Extended CRC4

Encoding: NRZ, CMI, AMI, HDB3

Line impedance: 120Ω

Installation and Upgrade Guide for Cisco Unified Videoconferencing 3545 PRI Gateway and 3545 Serial Gateway Release 5.5

5-2 OL-14912-01