Nortel Meridian 1 Manual page 547

8-104 Meridian 1 option 21 upgrades
Figure 8-26
NT5D21 Core/Network Module (rear)—RS-232 cable connections for CPSI ports
NT7D90
Ethernet cable
(from backplane
to I/O panel)
J28 (for ethernet)
J21 (for modem)
J25 (for terminal)
553-3001-250 Standard 14.00 August 1996
38 Follow the steps below to install the NT7D89 RS-232 Y-cable. The cable
connects one connector on the backplane to two connectors on the left
I/O panel (see Figure 8-26).
Note: Verify that the left I/O panel is correctly installed: The word
"LEFT" faces you at the top of the panel. The connector numbers listed
below match the designations on the outside of the left I/O panel.
• On the inside of the I/O panel, connect port A (DTE) to J21 (modem
port).
• On the inside of the I/O panel, connect port B (DCE) to J25 (terminal
port).
• Connect the single connector end of the cable to backplane
connector position 15D.
18 17 16 15 14 13 12 11 10 9 8
A
B
C
D
E
F
NT7D89 cable
(from backplane
to I/O panel)
553-6390