Reference Guide
IMACS System Release 5.1.9
7-3
WAN Card
WAN Module Descriptions
7.2.3.1
Card Jumper/Switch Settings
The WAN-R card does not have any jumpers or switches on its motherboard.
7.3
WAN Module Descriptions
7.3.1
DSX/CEPT Module Description (81130)
The DSX/CEPT module supports either the T1 DSX or E1 CEPT mode. It mounts on the WAN
SINGLE, WAN DUAL, and WAN-R cards. The CEPT function of the DSX/CEPT module is
used for connection to a 2.048 Mbps E1 network. Jumper settings are provided on the module
to select either DSX or CEPT operation. All WAN cards equipped with DSX/CEPT modules
also act as the "remote terminal" termination points for the Subscriber Loop Carrier (SLC-96)
facilities defined in Bellcore publication TR-TSY-000008, Issue 2, August 1987.
7.3.1.1
DSX/CEPT Module Jumper Settings
After installing the DSX/CEPT modules, set their jumpers for either DSX (T1) or CEPT (E1)
operation. These jumpers are factory-set for DSX. To convert a module to CEPT, reset the
jumpers as described below. The actual jumper locations will depend on which module
version you have.
7.3.1.2
DSX/CEPT Module Installation
For DSX or CEPT operation, you must install one of these modules on the associated WAN
card before inserting those cards into the system chassis. Figure 7-2 shows the locations of the
DSX/CEPT modules on a WAN card. One module is required per WAN port. If your system
has a T1 link (DSX) and an E1 link (CEPT), you will need two DSX/CEPT modules.
First, install a DSX/CEPT module in the slot reserved for WAN port 1-1. Insert the pins for
TX into socket JP10 on the WAN card (see Figure 7-2), while also inserting the pins for RX
in JP9 and the 24-pin end connector pins in JP6. Then, for a WAN DUAL card, install another
DSX/CEPT module in the WAN port 1-2 location, and plug that module into JP13, JP14, and
JP15.
