Cabletron Systems 6A000 manual Installing the Switch, 1 DS3 and E3 I/O Module Configuration

Switch Installation and SetupInstalling the Switch

Table 2-1 I/O module ID numbers (Continued)

Face Plate Number	Physical Specification
6A-IOM-29-4-LR	155	Mbps OC-3/STS-1, SMF-LR/SC (4 port)
6A-IOM-31-1	622 Mbps OC-12/STM-4, MMF/SC (1 port)
6A-IOM-39-1	622	Mbps OC-12/STM-4, SMF-IR/SC (1 port)
6A-IOM-39-1-LR	622	Mbps OC-12/STM-4, SMF-LR/SC (1 port)
6A-IOM-67-4	45 Mbps DS-3, Coax/BNC (4 port)
6A-IOM-77-4	34 Mbps E-3, Coax/BNC (4 port)

If the hardware configuration is incorrect, contact Cabletron customer support immediately.

2.2.1DS3 and E3 I/O Module Configuration

Table 2-2shows the pre-configured values for both the DS3 (6A-IOM-67-4) and E3 (6A-IOM-77-4) I/O modules. These values cannot be changed. Accordingly, configure the connecting device’s interface to use these values.

Table 2-2 DS3 and E3 Module settings

Protocol	Mode	Framing	Empty Cell	Timing	Scrambling	Length
DS3	plcp	cbit	unassigned	internal	off	greater than 225 ft.
E3	plcp	G.751	unassigned	internal	off	N/A

2.3INSTALLING THE SWITCH

The SmartCell 6A000 is hot swappable, meaning that you can install and remove it without turning off or unplugging the SmartSwitch 6000 chassis. You can install as many as five switch modules in each chassis (using the 6C205-3 power supply). In this configuration, the SmartCell 6A000 modules provide up to 75 user ports. Modules should be connected with inter-module trunks if traffic must cross between modules. Table 2-3shows the maximum number of LAN and ATM switch modules that can be installed in a SmartSwitch 6000 chassis.

Table 2-3 SmartSwitch 6000 contents

Number of 6Exxx or 6Hxxx modules installed	0	1	2	3	4	5
Number of 6A000 modules that can be added	5	4	3	2	1	0

SmartCell 6A000 User Guide 2-3