Nortel Passport 4430, Hardware Installation, Page: 39 / 176

Data Modules Passport 4400 Hardware Installation Manual
4-5
Figure 4-3. Legacy Data Module with Memory Expansion Module Installed
High-Speed Data Modules
There are two models of High-Speed Data Modules (HDMs):
• 8-Port High Speed Data Module (NTAU74AA)
• 4-Port High Speed Data Module (NTAU83AA)
The High-Speed Data Module provides additional port capability, identical to
port 1, on the Ethernet Base Module. The module supports RS-232/V.24, V.35,
V.36, and X.21 interfaces, determined by the cable used. The module can support
both DTE and DCE mode.
Note: Connections depend on the specific site requirements. If you
are not sure of the exact connections required
See Figure 3-5, on page 3-5, for Data Port pin assignments.
The Ethernet Base Module has three stacking connectors (see Figure 3-1 on
page 3-1) for the High-Speed Data Module that mount into the three connectors
(see Figure 4-4 below) located on the High-Speed Data Module. These connectors
on the High-Speed Data Module are on both the top and underside of the module.
Make sure these connectors are properly fitted.
Legacy Data Module
P16
IS
P17
WD
P18
P19
J11
KD
BD
Install Jumper on Position Marked P18 BD
Latching
Posts
Memory Expansion
Module
Module Switch Group
(see Figure 10-1 on
page 10-3)