Telephone Equipment and Service

The PIOU provides interfaces for Paging (Amplified, Unamplified, and Zone), SMDR, SMDI for Voice Mail integration, SMIS for ACD, DKAdmin Interface for on or off-site maintenance, an Alarm sensor, and a Remote Maintenance Modem subassembly (IMDU) that allows the system to be programmed from an off-site
DKAdmin PC.
© DK40i – the PIOU PCB's three-watt or non-amplified 600 W paging output is not used since paging is supported by the Base KSU paging interface.
© DK424 – the PIOU provides two-relay contact pairs. One of the contact pairs can be set for control of a customer-provided door lock or control of a MOH source. The other relay pair can be configured to mute BGM while the page feature is being activated or for the Night Relay function.

The PIOUS has most of the PIOU’s features, including SMDR output and the TTY output port interface and IMDU. It also provides flexible relay contacts and an Unamplified Page output. It does not provide Amplified or Zone Paging.

The PEPU is a reduced version of the PIOU and PIOUS, providing most of the Paging and Relay Contact options offered by these other optional PCBs.

Adds 4 Central Office lines.

The PDKU2 has eight digital telephone circuits that can support digital telephones (cordless as well as corded), integrated PC interface data units for data calling and/or TAPI application, off-hook call announce, DDSS consoles or DADMs for attendant stations that must handle a heavy load of calls, and a DDCB for a variety of applications.

Each of these devices only requires one circuit except for the integrated PC interface unit or DADM, which shares a circuit with the telephone to which they are connected.

The PEKU provides eight electronic telephone circuits that can interface with electronic telephones, an alternate BGM source, a Direct Station Selection Console (HDSS), an external amplifier for DISA or two-CO line Conferencing.

DK 4 CRT TIE LINE

The PESU offers two standard and four electronic telephone circuits. Its standard circuits support the same devices as the KSTU2. Its electronic circuits interface with the same peripherals as the PEKU, except for the HDSS console.

© DK40i – a K5RCU or K5RCU2 must be installed in the Base KSU to interpret DTMF tones transmitted by devices connected to the standard telephone circuits.

© DK424 – an RRCS must be installed on the common control unit to interpret the DTMF signals for devices connected to the standard telephone circuits.