2-8 System Installation
Model No.
Running Head

Connector Pin-outs System Installation

Note: For purposes of connection and function, the IMACS-200 should be considered a DCE.
2.4.2 E&M, FXS and Alarm input connector
Table 2-5 lists the connector pinouts for the E&M circuits, FXS circuit and the provided alarm input
points. For E&M, “R”, “T” and “M” are consider input direction, “R1”, “T1” and “E” are considered
output direction, and “SB” and “SG” are considered direction-neutral.
23 External Transmit Clock A
24 Terminal Timing A Not Used U
25 Test Mode DCE NN

Table 2-5. 25-pair female amphenol connector

Port Designation Pin Port Designation Pin
E&M
Port 1 T-1 26 E&M
Port 4 T-4 38
E&M
Port1 R-1 1 E&M
Port4 R-4 13
E&M
Port 1 T1-1 27 E&M
Port 4 T1-4 39
E&M
Port 1 R1-1 2 E&M
Port 4 R1-4 14
E&M
Port 1 E-1 28 E&M
Port 4 E-4 40
E&M
Port 1 M-1 3 E&M
Port 4 M-4 15
E&M
Port 1 SG-1 29 E&M
Port 4 SG-4 41
E&M
Port 1 SB-1 4 E&M
Port 4 SB-4 16
E&M
Port 2 T-2 30 FXS
Port 1 T-1 42
E&M
Port 2 R-2 5 FXS
Port 1 R-1 17

Table 2-4. V.35 DB25 female connector

Pin Signal Source V.35 (with PRM-1261F cable)