Installation manual

COMSPHERE 3000 Series Carrier
5-4 March 2001 3000-A2-GA31-F0
DTE Connector Modules
DSUs with MUX cards and Model 3821Plus two-slot
triple modem use 6-port connector modules.
A DSU with a MUX card attached uses a rear
connector module for six-port TDM or MCMP with the
alternate port option (Figure 5-6). The connector module
has:
• Six ports; each port is a 25-pin connector which
provides the EIA-232 DTE interface.
The 25-pin connectors can be used with a V.35
adapter plug or V.35 adapter cable (feature
3000-F1-510). Either adapter converts the 25-pin
V.35 interface to the standard 34-pin V.35 interface.
• A 26-pin high-density D-type connector at the top,
which provides the V.35 interface for either Port 1
or an aggregate data path. Use a 6-port V.35
interconnect cable (supplied by the customer) to
convert the 26-pin high-density D-type interface to
the standard 34-pin V.35 interface.
26-Pin
High-Density
D-Type
Connector
Six 25-Pin
DTE
Connectors
495-14840
Figure 5-6. DSU with MUX Connector Module
The two-slot triple modem uses a 6-port DTE interface
connector module as shown in Figure 5-7. The connector
module uses one of the following cables:
• An RS-232 cable with DB25 connectors for each of
six ports labeled A, B, and C, or
• An 8-pin modular cable with two DB25 to
8-position modular adapters.
496-14876
3000 Series
Carrier
Slots
Tabs
DTE Interface
Connector
Module
A
A
B
B
C
C
Figure 5-7. Triple Modem
Connector Module