Lucent Technologies 6 manual Remote Connection to MCU, Connection Procedure

Connecting the PC to the MCU

Remote Connection to MCU

When the PC is located remotely from the MCU, the MCU’s modem pooling capa- bility is ideal for connecting the data link needed to support CRCS/OpCenter. With modem pooling, Hayes-compatible analog modems are used at the PC to connect over the PTSN to the MCU. The MCU implements an external 7400A data module combined with a 3800 modem running 9600 bps to provide conversion resources needed to route the analog voice calls from the CRCS to the digital Netcon chan- nels in the MCU.

There are two types of conversion resources for modem pooling. The first type, an integrated conversion resource, is a circuit pack which emulates a Trunk Data Module connected to a 212A-type modem. The MCU does not support the inte- grated modem solution.

The second type, a combined conversion resource, is a separate Trunk Data Module and modem administered as a unit. The Trunk Data Module component of the conversion resource may be either a Modular Trunk Data Module (MTDM) or a 7400A data module. The module connects to a digital port using Digital Commu- nications Protocol (DCP); the 3800 modem connects to an analog port on the TN746B.

The MCU supports the Combined Modem Pooling Solution for use in remote con- nectivity between the MCU and the CRCS module whenever these components are not collocated. See "Appendix A: Modem Pooling" for further installation details.

Connection Procedure

1.Connect the COM1 port to the 8400B/7400B data module with an appropri- ate adapter, if necessary, and an M25B (EIA-232-D) cord or equivalent. If using modem pooling, use an analog modem instead.

2.Use an RS232 cable (M25B) with a 25-pin female connector for the CRCS PC or server and a 25-pin male connector for the analog modem (remote connection) or data module (local connection).

3.If your supplied cable does not have the appropriate gender connectors, use a gender changer to make the adjustments.

4.PC ports are usually labeled with the port number and type (serial or paral- lel), if not see your PC user manual for proper labeling. If the first serial port is a 9-pin connector, connect a 9-pin-to-25-pin RS232 adapter (you sup- ply).

10 Issue 1 CRCS R6.0 April 1999