Toshiba CTX28 manual RMCU/RCMS E911 Cama Trunk Direct Interface, Rcms Subassemblies Installation

PCB Installation

RMCU/RCMS – E911 CAMA Trunk Direct Interface

RMCU/RCMS – E911 CAMA Trunk Direct Interface

Circuits per PCB: four circuits

Interfaces with: enhanced 911 locator services

Older Version(s): none

The E911 CAMA Trunk Direct Interface card (RMCU) enables cost-effective connection to the Enhanced 911 locator services without third-party equipment. Figure 6-29shows the RMCU. The RMCU supports two subassemblies (RCMS) that provide a total of up to four ports as shown in Figure 6-27. Only one RMCU PCB can be installed in a Strata CTX670 system.

The RMCU has no CAMA circuits. It requires one RCMS subassembly to provide one or two CAMA trunks and two RCMS PCBs to provide up to four CAMA trunks.

Location of the RCMS LEDs are shown in Figure 6-30and the functions of the RCMS LEDs are given in Table 6-19.

RCMS Subassemblies Installation

1.Attach one or two subassemblies (RCMS) to the connectors on the RMCU as shown in Figure 6-27. If only one RCMS is to be installed, install it in the bottom position.

2.Apply firm even pressure to ensure that the connectors are properly seated in the RMCU connector blocks. If they are seated properly, a light resistance is felt when you pull the units away from the RMCU.

RCMS1A

®UP

A B C D E F G H K

UP

R M C U 1 A

P6

RMCU1A

P5

P7

P3

RCMS1A

®UP

A B C D E F G H K

P4

RMCU1A - CM V. 1

UP

P2

2758

Figure 6-27 Placement of RCMS Subassemblies on the RMCU Interface Card

6-38 Strata CTX I&M 06/04