Installation, Nest shelf, T-aps-r-15 rear panel connections – Dataprobe T-APS Rack User Manual
Page 4: Cpe, l1, and l2

Installation
Nest Shelf
Turn off power source until all connection are completed.
Power
Connect -48VDC from A source and B source (if available) to terminal block positions marked -48A and -
48B located on the upper left rear of the chassis. Connect the +48VDC return for each source to the
terminals marked GND (A) and GND (B) respectively. Connect the frame ground to position marked
FGND.
An external 110-220VAC AC power supply option is available for powering the T-APS-R-15 on AC power
source. Dataprobe Item# 1930073
Network
Connect your network to the 8 wire modular jack marked LAN located on the lower left rear panel using a
pin to pin, non reversing cable. Wiring detail is shown below.
Serial
Connect an RS232 DTE terminal device to the RJ11 jack marked COM located on the left side of the
rear panel. See wiring detail below
Expansion
An RS-485 BUS is provided for expanded the communication bus to multiple nests. Be sure to connect
point A to point A, point B to point B, from HOST / MASTER to each SLAVE SHELF and SW1 is correctly
set.
Alarm Contacts
Alarm contacts are provided on the rear panel for indicating a hardware failure alarm (NC-COM).
Additional alarm information is available thru the network or serial ports
T-APS-R-15 Rear Panel Connections
T1 / E1 RJ45 PIN Assignments:
:
CPE, L1, and L2
CPE: Customer Premise Equipment
L1:
Line 1, Active Path
L2
Line 2, Protection Path
Pin Assignment
1
Receive Data
2
Receive Data
3
No Connection
4
Transmit Data
5
Transmit Data
6
No Connection
7
No Connection
8
No Connection
4 TX
3 NC
2 RX
1 RX
8 NC
7 NC
6 NC
5 TX