1. An IBM licensed program that extends the capabilities of the ACF/NCP to support a select group of nonSNA devices.; 一种IBM特许程序，能扩充通信系统软件ACF/NCP的功能，以便支持选定的一 组非系统网络体系结构(SNA)设备。 2. An IBM licensed program that converts start/stop terminal device communication protocols and commands into SNA and VTAM communication protocols and commands. | 一种IBM特许程序，能将起停终端设备通讯协议和命令变为系统网络体系结构 (SNA)和虚拟远程通信存取法(VTAM)通讯协议与命令。