Installing the Switch | Switch Installation and Setup |
If the switch’s hardware or software configuration is incorrect, contact Cabletron customer support immediately.
2.3.1DS3 and E3 I/O Module Configuration
Table 2-2shows 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.
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 |
| | | | | | |
2.4INSTALLING 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.
2.4.1Desktop 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:
UZX-250 — 17.5 inches wide by 14.5 inches deep
UZX-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.
2-4 SmartCell ZX-250 User Guide
