LEGRAND Raritan MCD Series, Manual

Page: 51 / 83

2nd-tier MCD switches
MCD KVM switch (or MCD
‑
LED KVM drawer) as the base switch
Keyboard, mouse, and monitor
Limitations of the Two-Tier System
The two-tier system has several limitations.
• There is only one path (Cat5e/6 UTP cable) between the base switch and each 2nd-tier switch. •
When a user from the base switch is accessing any channel of a 2nd-tier switch, there are no other
paths left for the other user from the base switch to access the same 2nd-tier switch's channels.
•
When using a dual-user model as the 2nd-tier switch, the base switch must be connected to this
•
2nd-tier switch's 'Console 1' connector. You cannot connect the base switch to its 'Console 2'
connector.
•
When a dual-user model operates as a 2nd-tier switch, its 'Console 2' connector is automatically
•
disabled so DO NOT connect a local keyboard/mouse/monitor to its 'Console 2'.
Establishing a Two-Tier System
Major steps include:
• STEP (a): Connect the 2nd-tier switch(es) to the base switch •
•
STEP (b): Connect the keyboard, mouse, monitor and audio devices to the base switch
•
•
STEP (c): Connect servers to the two-tier system
•
Step (a): Connect 2nd-Tier Switches to the Base Switch
You can mix identical or different MCD models in a two-tier system. For example, you may connect a
MCD
‑
116 switch to a MCD
‑
232 base switch.
▶
To cascade MCD switches:
1. Turn OFF all MCD switches, including the base switch.
2. Connect the 2nd-tier MCD switch to the base switch via one MDCIM-DVI.
Note: If support for audio transmission with the 2nd
‑
tier switch is required, you must use the MDUTP
cable and a Raritan's DVI-I to VGA adapter to connect the 2nd tier.
a.
Plug the connectors of the MDCIM or MDUTP into the 'Console 1' connectors of the 2nd-tier
a.
switch. You CANNOT connect them to 'Console 2'.
b. Use a standard network patch cable (Cat5e/6 UTP) to connect the 2nd-tier MDCIM to any b.
channel port of the base switch.
51