Specifications

Reference Guide
7-5
WAN Card WAN Module Descriptions
Note:
The WAN HDSL card doesn’t support line powering, WAN HDSL card redundancy or
TR08.
Note:
This T1/HDSL PairGain Module can not communicate with modules from other
vendors.
7.3 WAN Module Descriptions
7.3.1 DSX/CEPT Module Description (811)
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 7-3 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 7-3), 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.