Specifications

Installation and Operation Manual Chapter 3 Operation
SPS-6, SPS-12 Operating Instructions 3-3
Rear Panel Controls and Connectors
Table 3-2 lists the functions of the SPS-12 rear panel controls and connectors. The
numbers under the heading “Item” refer to the identification numbers in
Figure 3-2. The SPS-6 rear panel is similar to the SPS-12 but has 6 links connectors.
Figure 3-2. SPS-12 Rear Panel Controls and Connectors
Table 3-2. SPS-6/SPS-12 Rear Panel Controls and Connectors
Item Control Connector Function
1 Power Connection AC power connector with integral
fuse
2 Asynchronous Channel Connectors Connects to the asynchronous
channel
3 Synchronous Links Connectors Connection to X.25 link
3.3 Operating Instructions
General
After preparing the unit for operation (see Chapter 2), it normally operates
unattended. Operator intervention is only required when the SPS-6/SPS-12 is set
up for the first time or must be adapted to new operational requirements.
The unit's configuration is stored in a non-volatile memory, and is not affected when
power is turned off.
Power-On
Connect the power cable to the rear power connector; the PWR indicator should
light.
If none of the links to the synchronous DTE/DCE peers are operational, the SYNC
indicators of the unit flash. Wait until one of the links becomes operational, and
then check that the corresponding SYNC indicator stops flashing and lights
continuously.
While the unit performs a self-test, check that the ERR, OVF and TEST indicators
turn off after a short interval.
Note