Rear Panel; Figure 3-4. Dsu Iv Esp Rear View - ADTRAN DSU IV ESP User Manual

Chapter 3. Operation

REAR PANEL

The rear panel contains two DTE connectors which provide
primary channel V.35 or EIA-232. An 8-pin telco jack, a control port,
a captive power cord, and a power switch are also located on the
rear panel. Pin assignments for these connectors are listed in
Pinouts on page A-1. The DSU IV ESP rear panel is shown in Figure
3-4 with optional ESP cards installed.
DDS
Telco Cable
DBU Interface
LAN Interface
Telco
EIA-232
Control
V.35
Power Switch
115 VAC Connection Power cord connection
3-8
S4W, V.34, or
ISDN DBU Card
DBU INTERFACE
ISDN
DBU
TELCO
EIA-232
4-wire
EIA232 Cable
DTE Device
Item
ESP DBU card slot
ESP Ethernet card slot
Connects to dedicated circuit
Connects to a DTE interface
Connects to a VT 100 terminal or a device
running SLIP or async PPP protocol
High speed DTE interface
Turns power on or off
DSU IV ESP User Manual
10BaseT LAN Card
LAN INTERFACE
1 10 BASE T
LAN
V .35
CONTROL
ON
OFF OFF OF FF
VT 100 Terminal or
device running SLIP
or async PPP protocol
Function

Figure 3-4. DSU IV ESP Rear View

Z.15A A
DTE Device
61204011L1-1