Cabletron Systems ZX-250 사용자 설명서
2-4 SmartCell ZX-250 User Guide
Installing the Switch
Switch Installation and Setup
If the switch’s hardware or software configuration is incorrect, contact Cabletron customer support immediately.
2.3.1
DS3 and E3 I/O Module Configuration
Table 2-2 shows the pre-configured values for both the DS3 (ZX-IOM-67-4) and E3 (ZX-IOM-77-4) I/O modules.
These values cannot be changed. Accordingly, configure the connecting device’s interface to use these values.
These values cannot be changed. Accordingly, configure the connecting device’s interface to use these values.
2.4
INSTALLING THE SWITCH
SmartCell ZX-250 switches are designed to operate either while sitting on a desktop on their rubber feet or while
mounted in a rack by side-panel mounting brackets.
mounted in a rack by side-panel mounting brackets.
2.4.1
Desktop Installation
ZX-250 switches can be installed on any clean, dry, stable surface (desktop) that allows for at least four inches of clear
space on both sides of the switch:
space on both sides of the switch:
U
ZX-250 — 17.5 inches wide by 14.5 inches deep
U
ZX-250r — 17.5 inches wide by 20.5 inches deep
2p›F
Because the ZX-250r power supply modules install from the back of the switch,
you may want to select a surface that provides sufficient room to remove and
install the power supply modules.
you may want to select a surface that provides sufficient room to remove and
install the power supply modules.
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