Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
Table 2-16. T1 Common Module Standard groups and functions
Group
Name
Group Description Function Name Function Description
TIME Transmitter timing mode set-up functions Loop (1) * Loop timing.
Int
(1) * Internal timing.
Ext
(1) (2) * External timing.
Thru (2) Through
timing.
TSEL T1 Set-up functions SF Superframe format.
ESF Extended Superframe format.
Alternate Mark Inversion. AMI
Bipolar with 8-Zero Substitution. B8ZS
RFL Not CSU mode
ANSI
ANSI CSU mode
ATT AT&T CSU mode
CRC4 Cyclic Redundancy Check (not used in T1)
LPBK T1 loopback setup functions. LnLB Line loopback.
PaLB Payload loopback.
EqLB Equipment loopback.
BLNK Blink status functions RxYl Receiving yellow alarm.
(Reasons for blinking RX IN LED or Rx11 Receiving all unframed ones.
transmit timing LEDs) FTIM Fallback timing is in effect.
(See Tables 2-10 & 2-11 for more details) XsJt Excessive jitter (buffer depth exceeded).
RVU1 Review 1 status functions TxRx Transmit and receive bus clock lock status.
Receiver carrier loss. RcLs
(See Tables 2-10 & 2-11 for more details) XsJt Excessive jitter.
DIAG Diagnostic functions. T1 Current T1 mode.
#.## Common module firmware revision.
Fcty When set, returns Common Module to
factory-default setup (Int, ESF, B8ZS).
ADDR Multiplexer address ddd A three-digit number (001 to 500). Note: Node address
78 is reserved for system use.
SIO Remote port serial parameters BAUD Baud rate: 110 bps to 115,000 bps.
Parity: Mark, Space, Even, or Odd. PAR
Lock Lock: Locks/unlocks the remote port.
Univ Universal addressing
FAST* Fast Reframing Disa Disable fast reframe
Enab
Enable fast reframe
MAIN* Main module forced-switch configuration Off Force to report an on-board trouble
parameters On Do not force to report an on-board trouble
SWCH* Standby module forced-switch Auto Allow automatic switch operation
configuration parameters Main Activate main module
Stby Activate standby module
SQEL
RDATA Squelch setup function
PRSQ Pre-squelch timer (0ms, 0.66ms, 1.3ms, 2.0ms, 2.7ms,
3.3ms, 4.0ms, 4.6ms, 5.3ms, 6.0ms, 6.6ms, 7.3ms,
8.0ms, 8.6ms, 9.3ms) or DISA
POSQ Post-squelch timer (0ms, 0.66ms, 1.3ms, 2.0ms, 2.7ms,
3.3ms, 4.0ms, 4.6ms, 5.3ms, 6.0ms, 6.6ms, 7.3ms,
8.0ms, 8.6ms, 9.3ms) or DISA
SWAP*
Programmable Swap Time dealy
0.6s, 1.2s, 2.4s,
4.8s, 9.6s, 19s
Swap Time delay in seconds (0.6s, 1.2s, 2.4s, 4.8s, 9.6s,
19s)
INTF Interface Specifications TYPE System Type: T1 or E1
HEAD CMI (for optical interfaces)
75 or 120 (equates to 100Ω for T1
electrical interfaces)
TLBO Transmit line buildout:
0x00 (DSX standard, 0 to 133 feet)
0x01 (133 to 266 feet)
0x02 (266 to 399 feet)
0x03 (399
to 533 feet)
0x04 (533 to 655 feet
0x05 (-7.5 dB)
0x06 (-15 dB)
0x07 (-22.5 dB)
Notes: (1) Active on terminal multiplexers only. (2) Active on drop/insert multiplexers only.
* Not used in M-DACS.
M-DACS-T1 RFL Electronics Inc.
October 16, 2012 2-54 (973) 334-3100
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